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- 23:59, 9 June 2011 (diff | hist) . . (-68) . . m 1998 AJHSME Problems/Problem 10
- 15:45, 6 June 2011 (diff | hist) . . (+332) . . 1998 AHSME Problems/Problem 5
- 15:43, 6 June 2011 (diff | hist) . . (+51) . . m 1998 AHSME Problems/Problem 1
- 15:42, 6 June 2011 (diff | hist) . . (+37) . . m 1998 AHSME Problems/Problem 10
- 14:10, 6 June 2011 (diff | hist) . . (+702) . . N 2010 USAMO Problems/Problem 6 (Created page with "== Problem == A blackboard contains 68 pairs of nonzero integers. Suppose that for each positive integer <math>k</math> at most one of the pairs <math>(k, k)</math> and <math>(-...")
- 14:04, 6 June 2011 (diff | hist) . . (+603) . . N 2011 USAMO Problems/Problem 5 (Created page with "==Problem== Let <math>P</math> be a given point inside quadrilateral <math>ABCD</math>. Points <math>Q_1</math> and <math>Q_2</math> are located within <math>ABCD</math> such th...")
- 00:08, 6 June 2011 (diff | hist) . . (+1,076) . . 2006 Romanian NMO Problems/Grade 8/Problem 2 (current)
- 20:17, 5 June 2011 (diff | hist) . . (-14) . . m 1999 AHSME Problems/Problem 15 (→Solution)
- 20:17, 5 June 2011 (diff | hist) . . (+135) . . 1999 AHSME Problems/Problem 15
- 17:24, 5 June 2011 (diff | hist) . . (+153) . . m 2011 AMC 10B Problems/Problem 20
- 17:21, 5 June 2011 (diff | hist) . . (-530) . . 2011 AMC 12B Problems/Problem 16 (Redirected page to 2011 AMC 10B Problems/Problem 20) (current)
- 17:18, 5 June 2011 (diff | hist) . . (+457) . . N 2011 AMC 12B Problems/Problem 10 (Created page with "==Problem== Rectangle <math>ABCD</math> has <math>AB=6</math> and <math>BC=3</math>. Point <math>M</math> is chosen on side <math>AB</math> so that <math>\angle AMD=\angle CMD</m...")
- 17:16, 5 June 2011 (diff | hist) . . (+552) . . N 2011 AMC 12B Problems/Problem 12 (Created page with "==Problem== A dart board is a regular octagon divided into regions as shown below. Suppose that a dart thrown at the board is equally likely to land anywhere on the board. What i...")
- 17:15, 5 June 2011 (diff | hist) . . (+479) . . N 2011 AMC 12B Problems/Problem 13 (Created page with "==Problem== Brian writes down four integers <math>w > x > y > z</math> whose sum is <math>44</math>. The pairwise positive differences of these numbers are <math>1, 3, 4, 5, 6</m...")
- 17:14, 5 June 2011 (diff | hist) . . (-3) . . m 2011 AMC 12B Problems/Problem 14 (→Problem 15)
- 17:12, 5 June 2011 (diff | hist) . . (+553) . . N 2011 AMC 12B Problems/Problem 14 (Created page with "==Problem 15== A segment through the focus <math>F</math> of a parabola with vertex <math>V</math> is perpendicular to <math>\overline{FV}</math> and intersects the parabola in p...")
- 17:11, 5 June 2011 (diff | hist) . . (+576) . . N 2011 AMC 12B Problems/Problem 16 (Created page with "==Problem== Rhombus <math>ABCD</math> has side length <math>2</math> and <math>\angle B = 120^{\circ}</math>. Region <math>R</math> consists of all points inside of the rhombus t...")
- 17:02, 5 June 2011 (diff | hist) . . (-2,003) . . 2011 AMC 10B Problems/Problem 20
- 13:18, 3 June 2011 (diff | hist) . . (+249) . . 1958 AHSME Problems/Problem 3
- 13:08, 3 June 2011 (diff | hist) . . (+14) . . m 2005 AMC 12B Problems/Problem 23 (→Solution)
- 01:15, 3 June 2011 (diff | hist) . . (-9) . . m 2010 AMC 12B Problems/Problem 10
- 01:13, 3 June 2011 (diff | hist) . . (+994) . . m Angle Bisector Theorem
- 00:52, 3 June 2011 (diff | hist) . . (+90) . . m Asymptote: 3D graphics
- 23:49, 2 June 2011 (diff | hist) . . (+19) . . m Asymptote: 3D graphics
- 23:44, 2 June 2011 (diff | hist) . . (+25) . . m 2001 AMC 10 Problems/Problem 10
- 23:34, 2 June 2011 (diff | hist) . . (+8) . . m 1990 AIME Problems/Problem 15 (→Solution 2)
- 23:32, 2 June 2011 (diff | hist) . . (+315) . . N Linear recurrence (Created page with 'A sequence <math>\{a_{0},a_{1},a_{2},\ldots\}</math> is said to obey a '''linear recurrence of order <math>k</math>''' if there exist constants <math>c_{0},c_{1},\ldots,c_{k-1}</…') (current)
- 23:24, 2 June 2011 (diff | hist) . . (-5) . . m Angle Bisector Theorem
- 18:47, 1 June 2011 (diff | hist) . . (+79) . . m Law of Sines (→Method 2)
- 18:45, 1 June 2011 (diff | hist) . . (+448) . . Law of Sines (→Method 1)
- 18:27, 1 June 2011 (diff | hist) . . (+1,960) . . N 2008 AMC 12B Problems/Problem 15 (Created page with '==Problem== On each side of a unit square, an equilateral triangle of side length 1 is constructed. On each new side of each equilateral triangle, another equilateral triangle of…')
- 18:06, 1 June 2011 (diff | hist) . . (+23) . . m 2008 AMC 12B Problems/Problem 19
- 01:15, 8 August 2010 (diff | hist) . . (+354) . . m 2002 AIME I Problems/Problem 15
- 23:29, 7 August 2010 (diff | hist) . . (+532) . . m 2007 AMC 10A Problems/Problem 21 (→Solution 1)
- 22:45, 7 August 2010 (diff | hist) . . (+17) . . m Asymptote: Basics (→Variables and Data Types)
- 19:13, 7 August 2010 (diff | hist) . . (+34) . . m Asymptote (Vector Graphics Language)
- 17:22, 7 August 2010 (diff | hist) . . (+538) . . m 2009 AIME I Problems/Problem 5 (→Solution)
- 16:03, 7 August 2010 (diff | hist) . . (+9) . . m Asymptote (Vector Graphics Language)
- 23:07, 6 August 2010 (diff | hist) . . (+32) . . m 2010 IMO Problems/Problem 4 (→Solution 1)
- 22:59, 6 August 2010 (diff | hist) . . (+461) . . m 1998 AHSME Problems
- 19:26, 30 June 2010 (diff | hist) . . (-43) . . m Mathematics scholarships (Reverted edits by Enrikem (Talk) to last revision by Vicky13)
- 08:35, 22 July 2009 (diff | hist) . . (+735) . . N 2009 USAMO Problems/Problem 6 (Created page with '== Problem == Let <math>s_1, s_2, s_3, \ldots</math> be an infinite, nonconstant sequence of rational numbers, meaning it is not the case that <math>s_1 = s_2 = s_3 = \cdots.</ma…')
- 08:34, 22 July 2009 (diff | hist) . . (+791) . . N 2009 USAMO Problems/Problem 5 (Created page with '== Problem == Trapezoid <math>ABCD</math>, with <math>\overline{AB}||\overline{CD}</math>, is inscribed in circle <math>\omega</math> and point <math>G</math> lies inside triangl…')
- 08:30, 22 July 2009 (diff | hist) . . (+984) . . Orthocenter
- 06:50, 22 July 2009 (diff | hist) . . (0) . . m Number theory (→Books)
- 00:58, 27 March 2009 (diff | hist) . . (+1,470) . . m Derivative/Formulas (Reverted edits by Mathforce1 (Talk) to last version by 1=2)
- 13:26, 13 March 2009 (diff | hist) . . (0) . . m 1987 AIME Answer Key (current)
- 21:15, 9 March 2009 (diff | hist) . . (+1,021) . . m Floor function
- 11:51, 28 February 2009 (diff | hist) . . (+429) . . m 1984 AIME Problems/Problem 15 (→Solution)
- 10:35, 28 February 2009 (diff | hist) . . (-1) . . m 1984 AIME Problems (→Problem 8)
- 23:52, 11 February 2009 (diff | hist) . . (-120) . . m United States of America Mathematical Olympiad (→Recommended reading)
- 01:24, 5 January 2009 (diff | hist) . . (+13) . . m 2006 AIME A Problems/Problem 15 (→Solution)
- 03:25, 4 January 2009 (diff | hist) . . (-54) . . m Template:ProbAMC (current)
- 22:35, 3 January 2009 (diff | hist) . . (+3,015) . . 1975 USAMO Problems/Problem 2
- 17:08, 3 January 2009 (diff | hist) . . (+3,160) . . N 1976 USAMO Problems (New page: Problems from the '''1976 USAMO'''. ==Problem 1== <asy> void fillsq(int x, int y){ fill((x,y)--(x+1,y)--(x+1,y+1)--(x,y+1)--cycle, ...)
- 17:06, 3 January 2009 (diff | hist) . . (+4) . . m 1975 USAMO Problems
- 17:04, 3 January 2009 (diff | hist) . . (+26) . . m 1976 USAMO Problems/Problem 5
- 17:03, 3 January 2009 (diff | hist) . . (+377) . . N 1976 USAMO Problems/Problem 4 (New page: ==Problem== If the sum of the lengths of the six edges of a trirectangular tetrahedron <math>PABC</math> (i.e., <math>\angle APB=\angle BPC=\angle CPA=90^o</math>) is <math>S</math>, deter...)
- 16:57, 3 January 2009 (diff | hist) . . (+363) . . m 1994 AIME Problems/Problem 6 (→Solution)
- 16:41, 3 January 2009 (diff | hist) . . (+15) . . m 1994 AIME Problems/Problem 14 (→Solution)
- 16:41, 3 January 2009 (diff | hist) . . (+1,270) . . N 1976 USAMO Problems/Problem 2 (New page: ==Problem== If <math>A</math> and <math>B</math> are fixed points on a given circle and <math>XY</math> is a variable diameter of the same circle, determine the locus of the point of inter...)
- 14:43, 3 January 2009 (diff | hist) . . (+438) . . m 1976 USAMO Problems/Problem 1
- 02:20, 3 January 2009 (diff | hist) . . (+1,128) . . m AoPS Wiki:AoPS Community Awards (→Perfect AMC Scores)
- 01:47, 3 January 2009 (diff | hist) . . (+1,220) . . 1974 USAMO Problems/Problem 2
- 01:15, 3 January 2009 (diff | hist) . . (+3,278) . . 1974 USAMO Problems/Problem 5
- 22:52, 2 January 2009 (diff | hist) . . (0) . . m Template:AIME Problems
- 21:29, 31 December 2008 (diff | hist) . . (+16) . . m USAMO Problems and Solutions
- 18:36, 30 December 2008 (diff | hist) . . (-3) . . m 1973 USAMO Problems (→See also)
- 18:36, 30 December 2008 (diff | hist) . . (-3) . . m 1974 USAMO Problems (→See also)
- 18:36, 30 December 2008 (diff | hist) . . (+2,098) . . N 1975 USAMO Problems (New page: Problems from the ''' USAMO'''. ==Problem 1== (a) Prove that <center><math>[5x]+[5y]\ge [3x+y]+[3y+x]</math>,</center> where <math>x,y...)
- 18:33, 30 December 2008 (diff | hist) . . (+1) . . m 1975 USAMO Problems/Problem 1 (→Problem)
- 18:32, 30 December 2008 (diff | hist) . . (+487) . . N 1975 USAMO Problems/Problem 5 (New page: ==Problem== A deck of <math>n</math> playing cards, which contains three aces, is shuffled at random (it is assumed that all possible card distributions are equally likely). The cards are ...)
- 18:28, 30 December 2008 (diff | hist) . . (+2,181) . . N 1963 IMO Problems (New page: Problems of the 5th IMO 1963 Poland. == Day I == === Problem 1 === Find all real roots of the equation <center><math>\sqrt{x^2-p}+2\sqrt{x^2-1}=x</math>,</center>where <math>p</math...)
- 18:25, 30 December 2008 (diff | hist) . . (+732) . . N 1963 IMO Problems/Problem 6 (New page: ==Problem== Five students, <math>A,B,C,D,E</math>, took part in a contest. One prediction was that the contestants would finish in the order <math>ABCDE</math>. This prediction was very po...)
- 18:23, 30 December 2008 (diff | hist) . . (+190) . . N 1963 IMO Problems/Problem 5 (New page: ==Problem== Prove that <math>\cos{\frac{\pi}{7}}-\cos{\frac{2\pi}{7}}+\cos{\frac{3\pi}{7}}=\frac{1}{2}</math>. ==Solution== {{solution}} ==See Also== {{IMO box|year=1963|num-b=4|num-a=6...)
- 18:21, 30 December 2008 (diff | hist) . . (+339) . . N 1963 IMO Problems/Problem 4 (New page: ==Problem== Find all solutions <math>x_1,x_2,x_3,x_4,x_5</math> of the system <center><math>\begin{eqnarray} x_5+x_2&=&yx_1\\ x_1+x_3&=&yx_2\\ x_2+x_4&=&yx_3\\ x_3+x_5&=&yx_4\\ x_4+x_1&=&y...)
- 18:19, 30 December 2008 (diff | hist) . . (+316) . . N 1963 IMO Problems/Problem 3 (New page: ==Problem== In an <math>n</math>-gon all of whose interior angles are equal, the lengths of consecutive sides satisfy the relation <center><math>a_1\ge a_2\ge \cdots \ge a_n</math>.</cente...)
- 18:17, 30 December 2008 (diff | hist) . . (+336) . . N 1963 IMO Problems/Problem 2 (New page: ==Problem== Point <math>A</math> and segment <math>BC</math> are given. Determine the locus of points in space which are the vertices of right angles with one side passing through <math>A<...)
- 18:15, 30 December 2008 (diff | hist) . . (+243) . . N 1963 IMO Problems/Problem 1 (New page: ==Problem== Find all real roots of the equation <center><math>\sqrt{x^2-p}+2\sqrt{x^2-1}=x</math>,</center>where <math>p</math> is a real parameter. ==Solution== {{solution}} ==See Also...)
- 18:10, 30 December 2008 (diff | hist) . . (+422) . . N 1962 IMO Problems/Problem 7 (New page: ==Problem== The tetrahedron <math>SABC</math> has the following property: there exist five spheres, each tangent to the edges <math>SA, SB, SC, BC, CA, AB</math>, or to their extensions. ...)
- 18:09, 30 December 2008 (diff | hist) . . (+374) . . N 1962 IMO Problems/Problem 6 (New page: ==Problem== Consider an isosceles triangle. Let <math>r</math> be the radius of its circumscribed circle and <math>\rho</math> the radius of its inscribed circle. Prove that the distance <...)
- 18:09, 30 December 2008 (diff | hist) . . (+346) . . N 1962 IMO Problems/Problem 5 (New page: ==Problem== On the circle <math>K</math> there are given three distinct points <math>A,B,C</math>. Construct (using only straightedge and compass) a fourth point <math>D</math> on <math>K<...)
- 18:08, 30 December 2008 (diff | hist) . . (+155) . . N 1962 IMO Problems/Problem 4 (New page: ==Problem== Solve the equation <math>cos^2{x}+cos^2{2x}+cos^2{3x}=1</math>. ==Solution== {{solution}} ==See Also== {{IMO box|year=1962|num-b=3|num-a=5}})
- 18:08, 30 December 2008 (diff | hist) . . (+841) . . N 1962 IMO Problems/Problem 3 (New page: ==Problem== Consider the cube <math>ABCDA'B'C'D'</math>(<math>ABCD</math> and <math>A'B'C'D'</math> are the upper and lower bases, respectively, and edges <math>AA'</math>, <math>BB'</math...)
- 18:07, 30 December 2008 (diff | hist) . . (+238) . . N 1962 IMO Problems/Problem 2 (New page: ==Problem== Determine all real numbers <math>x</math> which satisfy the inequality: <center> <math>\sqrt{\sqrt{3-x}-\sqrt{x+1}}>\dfrac{1}{2}</math> </center> ==Solution== {{solution}} =...)
- 17:57, 30 December 2008 (diff | hist) . . (+409) . . N 1962 IMO Problems/Problem 1 (New page: ==Problem== Find the smallest natural number <math>n</math> which has the following properties: (a) Its decimal representation has 6 as the last digit. (b) If the last digit 6 is erased ...)
- 17:56, 30 December 2008 (diff | hist) . . (-2) . . m 1962 IMO Problems (→Problem 1)
- 17:55, 30 December 2008 (diff | hist) . . (+1,325) . . 1962 IMO Problems
- 17:46, 30 December 2008 (diff | hist) . . (+587) . . N 1960 IMO Problems/Problem 7 (New page: ==Problem== An isosceles trapezoid with bases <math>a</math> and <math>c</math> and altitude <math>h</math> is given. a) On the axis of symmetry of this trapezoid, find all points <math>P...)
- 17:45, 30 December 2008 (diff | hist) . . (-13) . . m 1960 IMO Problems/Problem 6 (→See Also)
- 17:18, 30 December 2008 (diff | hist) . . (+664) . . N 1975 USAMO Problems/Problem 4 (New page: ==Problem== Two given circles intersect in two points <math>P</math> and <math>Q</math>. Show how to construct a segment <math>AB</math> passing through <math>P</math> and terminating on t...)
- 17:12, 30 December 2008 (diff | hist) . . (+302) . . N 1975 USAMO Problems/Problem 3 (New page: ==Problem== If <math>P(x)</math> denotes a polynomial of degree <math>n</math> such that <math>P(k)=k/(k+1)</math> for <math>k=0,1,2,\ldots,n</math>, determine <math>P(n+1)</math>. ==Solu...)
- 17:11, 30 December 2008 (diff | hist) . . (+390) . . N 1975 USAMO Problems/Problem 2 (New page: ==Problem== Let <math>A,B,C,D</math> denote four points in space and <math>AB</math> the distance between <math>A</math> and <math>B</math>, and so on. Show that <center><math>AC^2+BD^2+AD...)
- 17:09, 30 December 2008 (diff | hist) . . (+538) . . N 1975 USAMO Problems/Problem 1 (New page: ==Problem== (a) Prove that <center><math>[5x]+[5y]\ge [3x+y]+[3y+x]</math>,</center>where <math>x,y\ge 0</math> and <math>[u]</math> denotes the greatest integer <math>\le u</math> (e.g., ...)
- 17:04, 30 December 2008 (diff | hist) . . (+427) . . N 1975 USAMO (New page: The '''Fourth USAMO''' was held May 6, 1975. There were five problems. * 1975 USAMO Problems * Problem 1 * [[1975 USAMO Problems/Problem 2 | P...)
- 17:02, 30 December 2008 (diff | hist) . . (+2,660) . . N 1974 USAMO Problems (New page: Problems from the '''1974 USAMO'''. ==Problem 1== Let <math>a</math>, <math>b</math>, and <math>c</math> denote three distinct integer...)
- 17:00, 30 December 2008 (diff | hist) . . (-12) . . m 1974 USAMO Problems/Problem 4 (→See also)
- 17:00, 30 December 2008 (diff | hist) . . (+774) . . N 1974 USAMO Problems/Problem 4 (New page: ==Problem== A father, mother and son hold a family tournament, playing a two person board game with no ties. The tournament rules are: (i) The weakest player chooses the first two contest...)
- 16:56, 30 December 2008 (diff | hist) . . (+336) . . N 1974 USAMO Problems/Problem 3 (New page: ==Problem== Two boundary points of a ball of radius 1 are joined by a curve contained in the ball and having length less than 2. Prove that the curve is contained entirely within some hemi...)
- 16:54, 30 December 2008 (diff | hist) . . (+294) . . N 1974 USAMO Problems/Problem 2 (New page: ==Problem== Prove that if <math>a</math>, <math>b</math>, and <math>c</math> are positive real numbers, then <center><math>a^ab^bc^c\ge (abc)^{(a+b+c)/3}</math></center> ==Solution== {{so...)
- 15:58, 30 December 2008 (diff | hist) . . (-3) . . m 1972 USAMO Problems (→See also)
- 15:57, 30 December 2008 (diff | hist) . . (+2,293) . . N 1972 USAMO Problems (New page: Problems from the '''1972 USAMO'''. ==Problem 1== The symbols <math>(a,b,\ldots,g)</math> and <math>[a,b,\ldots, g]</math> denote the ...)
- 15:52, 30 December 2008 (diff | hist) . . (+4) . . m 1972 USAMO Problems/Problem 5 (→See also)
- 15:52, 30 December 2008 (diff | hist) . . (+21) . . m 1972 USAMO Problems/Problem 5 (→See also)
- 15:52, 30 December 2008 (diff | hist) . . (+805) . . N 1972 USAMO Problems/Problem 5 (New page: ==Problem== A given convex pentagon <math>ABCDE</math> has the property that the area of each of the five triangles <math>ABC</math>, <math>BCD</math>, <math>CDE</math>, <math>DEA</math>, ...)
- 15:42, 30 December 2008 (diff | hist) . . (+404) . . N 1972 USAMO Problems/Problem 4 (New page: ==Problem== Let <math>R</math> denote a non-negative rational number. Determine a fixed set of integers <math>a,b,c,d,e,f</math>, such that for ''every'' choice of <math>R</math>, <center...)
- 15:39, 30 December 2008 (diff | hist) . . (+530) . . N 1972 USAMO Problems/Problem 1 (New page: ==Problem== The symbols <math>(a,b,\ldots,g)</math> and <math>[a,b,\ldots, g]</math> denote the greatest common divisor and least common multiple, respectively, of the positive integers <m...)
- 15:35, 30 December 2008 (diff | hist) . . (+296) . . N 1972 USAMO Problems/Problem 2 (New page: ==Problem== A given tetrahedron <math>ABCD</math> is isosceles, that is, <math>AB=CD, AC=BD, AD=BC</math>. Show that the faces of the tetrahedron are acute-angled triangles. ==Solution== ...)
- 15:33, 30 December 2008 (diff | hist) . . (0) . . m 1972 USAMO Problems/Problem 3 (→See also)
- 15:33, 30 December 2008 (diff | hist) . . (0) . . m 1972 USAMO Problems/Problem 3 (→See also)
- 15:31, 30 December 2008 (diff | hist) . . (+1,897) . . N 1973 USAMO Problems (New page: Problems from the '''1973 USAMO'''. ==Problem 1== Two points <math>P</math> and <math>Q</math> lie in the interior of a regular tetrah...)
- 15:26, 30 December 2008 (diff | hist) . . (+41) . . m 1973 USAMO Problems/Problem 5 (→Problem)
- 15:24, 30 December 2008 (diff | hist) . . (+443) . . N 1973 USAMO Problems/Problem 3 (New page: ==Problem== Three distinct vertices are chosen at random from the vertices of a given regular polygon of <math>(2n+1)</math> sides. If all such choices are equally likely, what is the prob...)
- 15:22, 30 December 2008 (diff | hist) . . (+13) . . m 1973 USAMO Problems/Problem 1 (→Solution)
- 15:21, 30 December 2008 (diff | hist) . . (+284) . . N 1973 USAMO Problems/Problem 1 (New page: ==Problem== Two points <math>P</math> and <math>Q</math> lie in the interior of a regular tetrahedron <math>ABCD</math>. Prove that angle <math>PAQ<60^o</math>. ==Solution== ==See also==...)
- 15:18, 30 December 2008 (diff | hist) . . (-152) . . m 1973 USAMO Problems/Problem 2 (→Problem)
- 02:46, 21 December 2008 (diff | hist) . . (+2,829) . . N 2001 USAMO Problems (New page: Problems of the 2001 USAMO. == Day 1 == === Problem 1 === Each of eight boxes contains six balls. Each ball has been colored with one of <math>n</math> colors, such...)
- 02:42, 21 December 2008 (diff | hist) . . (-45) . . m 2002 USAMO Problems/Problem 3 (→Problem)
- 02:42, 21 December 2008 (diff | hist) . . (0) . . m 2002 USAMO Problems (→Problem 3)
- 02:40, 21 December 2008 (diff | hist) . . (+423) . . N 2001 USAMO Problems/Problem 6 (New page: == Problem == Each point in the plane is assigned a real number such that, for any triangle, the number at the center of its inscribed circle is equal to the arithmetic mean of the three ...)
- 02:38, 21 December 2008 (diff | hist) . . (+523) . . N 2001 USAMO Problems/Problem 5 (New page: == Problem == Let <math>S</math> be a set of integers (not necessarily positive) such that (a) there exist <math>a,b \in S</math> with <math>\gcd(a,b) = \gcd(a - 2,b - 2) = 1</math>; (b...)
- 02:37, 21 December 2008 (diff | hist) . . (+4) . . 2001 USAMO Problems/Problem 4
- 02:36, 21 December 2008 (diff | hist) . . (+463) . . N 2001 USAMO Problems/Problem 4 (New page: == Problem == Let <math>P</math> be a point in the plane of triangle <math>ABC</math> such that the segments <math>PA</math>, <math>PB</math>, and <math>PC</math> are the sides of an obtu...)
- 02:35, 21 December 2008 (diff | hist) . . (+312) . . N 2001 USAMO Problems/Problem 3 (New page: == Problem == Let <math>a, b, c \geq 0</math> and satisfy <center><math>a^2 + b^2 + c^2 + abc = 4.</math></center> Show that <center><math>ab + bc + ca - abc \leq 2.</math></center> == So...)
- 02:29, 21 December 2008 (diff | hist) . . (+3,035) . . N 2002 USAMO Problems (New page: Problems of the 2002 USAMO. == Day 1 == === Problem 1 === Let <math>S </math> be a set with 2002 elements, and let <math>N </math> be an integer with <math> 0 \le N...)
- 02:19, 21 December 2008 (diff | hist) . . (+6) . . m 2002 USAMO Problems/Problem 6
- 02:18, 21 December 2008 (diff | hist) . . (+809) . . N 2002 USAMO Problems/Problem 6 (New page: == Problem == I have an <math>n \times n</math> sheet of stamps, from which I've been asked to tear out blocks of three adjacent stamps in a single row or column. (I can only tear along t...)
- 19:58, 18 December 2008 (diff | hist) . . (+801) . . 2003 USAMO Problems/Problem 5
- 19:54, 18 December 2008 (diff | hist) . . (+598) . . 2003 USAMO Problems/Problem 4
- 19:40, 18 December 2008 (diff | hist) . . (+4,499) . . 2003 USAMO Problems/Problem 6
- 18:43, 18 December 2008 (diff | hist) . . (+495) . . m Cauchy-Schwarz Inequality (→Introductory)
- 19:01, 20 August 2008 (diff | hist) . . (+354) . . N 2001 IMO Shortlist Problems/N6 (New page: == Problem == Is it possible to find 100 positive integers not exceeding 25,000, such that all pairwise sums of them are different? == Solution == {{solution}} == Resources == * [[2001 ...)
- 18:59, 20 August 2008 (diff | hist) . . (+423) . . N 2001 IMO Shortlist Problems/N5 (New page: == Problem == Let <math>a > b > c > d</math> be positive integers and suppose that <center><math>ac + bd = (b + d + a - c)(b + d - a + c).</math></center> Prove that <math>ab + cd</math> i...)
- 18:57, 20 August 2008 (diff | hist) . . (+485) . . N 2001 IMO Shortlist Problems/N4 (New page: == Problem == Let <math>p \geq 5</math> be a prime number. Prove that there exists an integer <math>a</math> with <math>1 \leq a \leq p - 2</math> such that neither <math>a^{p - 1} - 1</ma...)
- 18:56, 20 August 2008 (diff | hist) . . (+424) . . N 2001 IMO Shortlist Problems/N3 (New page: == Problem == Let <math>a_1 = 11^{11}, \, a_2 = 12^{12}, \, a_3 = 13^{13}</math>, and <math>a_n = |a_{n - 1} - a_{n - 2}| + |a_{n - 2} - a_{n - 3}|, n \geq 4.</math> Determine <math>a_{14^...) (current)
- 18:55, 20 August 2008 (diff | hist) . . (+503) . . N 2001 IMO Shortlist Problems/N2 (New page: == Problem == Consider the system <math>x + y = z + u,</math> <math>2xy & = zu.</math> Find the greatest value of the real constant <math>m</math> such that <math>m \leq x/y</math> for any...)
- 18:54, 20 August 2008 (diff | hist) . . (+426) . . N 2001 IMO Shortlist Problems/N1 (New page: == Problem == Prove that there is no positive integer <math>n</math> such that, for <math>k = 1,2,\ldots,9</math>, the leftmost digit (in decimal notation) of <math>(n + k)!</math> equals ...)
- 18:51, 20 August 2008 (diff | hist) . . (+567) . . N 2001 IMO Shortlist Problems/G8 (New page: == Problem == Let <math>ABC</math> be a triangle with <math>\angle BAC = 60^{\circ}</math>. Let <math>AP</math> bisect <math>\angle BAC</math> and let <math>BQ</math> bisect <math>\angle ...)
- 18:50, 20 August 2008 (diff | hist) . . (+726) . . N 2001 IMO Shortlist Problems/G7 (New page: == Problem == Let <math>O</math> be an interior point of acute triangle <math>ABC</math>. Let <math>A_1</math> lie on <math>BC</math> with <math>OA_1</math> perpendicular to <math>BC</math...) (current)
- 18:49, 20 August 2008 (diff | hist) . . (+756) . . N 2001 IMO Shortlist Problems/G6 (New page: == Problem == Let <math>ABC</math> be a triangle and <math>P</math> an exterior point in the plane of the triangle. Suppose the lines <math>AP</math>, <math>BP</math>, <math>CP</math> meet...)
- 18:47, 20 August 2008 (diff | hist) . . (+944) . . N 2001 IMO Shortlist Problems/G5 (New page: == Problem == Let <math>ABC</math> be an acute triangle. Let <math>DAC,EAB</math>, and <math>FBC</math> be isosceles triangles exterior to <math>ABC</math>, with <math>DA = DC, EA = EB</m...) (current)
- 18:46, 20 August 2008 (diff | hist) . . (+831) . . N 2001 IMO Shortlist Problems/G4 (New page: == Problem == Let <math>M</math> be a point in the interior of triangle <math>ABC</math>. Let <math>A'</math> lie on <math>BC</math> with <math>MA'</math> perpendicular to <math>BC</math>....) (current)
- 18:44, 20 August 2008 (diff | hist) . . (+551) . . N 2001 IMO Shortlist Problems/G3 (New page: == Problem == Let <math>ABC</math> be a triangle with centroid <math>G</math>. Determine, with proof, the position of the point <math>P</math> in the plane of <math>ABC</math> such that <m...)
- 18:43, 20 August 2008 (diff | hist) . . (+594) . . N 2001 IMO Shortlist Problems/G2 (New page: == Problem == Consider an acute-angled triangle <math>ABC</math>. Let <math>P</math> be the foot of the altitude of triangle <math>ABC</math> issuing from the vertex <math>A</math>, and le...)
- 18:39, 20 August 2008 (diff | hist) . . (+724) . . N 2001 IMO Shortlist Problems/G1 (New page: == Problem == Let <math>A_1</math> be the center of the square inscribed in acute triangle <math>ABC</math> with two vertices of the square on side <math>BC</math>. Thus one of the two re...)
- 18:36, 20 August 2008 (diff | hist) . . (+588) . . N 2001 IMO Shortlist Problems/C8 (New page: == Problem == Twenty-one girls and twenty-one boys took part in a mathematical competition. It turned out that each contestant solved at most six problems, and for each pair of a girl and ...) (current)
- 18:36, 20 August 2008 (diff | hist) . . (+991) . . N 2001 IMO Shortlist Problems/C7 (New page: == Problem == A pile of <math>n</math> pebbles is placed in a vertical column. This configuration is modified according to the following rules. A pebble can be moved if it is at the top of...)
- 18:34, 20 August 2008 (diff | hist) . . (0) . . m 2001 IMO Shortlist Problems/C6 (corrected consequences of mindless copying and pasting :P) (current)
- 18:33, 20 August 2008 (diff | hist) . . (+1,061) . . N 2001 IMO Shortlist Problems/C6 (New page: == Problem == For a positive integer <math>n</math> define a sequence of zeros and ones to be [i]balanced[/i] if it contains <math>n</math> zeros and <math>n</math> ones. Two balanced sequ...)
- 18:32, 20 August 2008 (diff | hist) . . (+448) . . Nm 2001 IMO Shortlist Problems/C5 (New page: == Problem == Find all finite sequences <math>(x_0, x_1, \ldots,x_n)</math> such that for every <math>j</math>, <math>0 \leq j \leq n</math>, <math>x_j</math> equals the number of times <m...)
- 18:26, 20 August 2008 (diff | hist) . . (+606) . . m 2001 IMO Shortlist Problems/A1
- 18:23, 20 August 2008 (diff | hist) . . (+509) . . Nm 2001 IMO Shortlist Problems/C4 (New page: == Problem == A set of three nonnegative integers <math>\{x,y,z\}</math> with <math>x < y < z</math> is called <i>historic</i> if <math>\{z - y,y - x\} = \{1776,2001\}</math>. Show that t...)
- 18:21, 20 August 2008 (diff | hist) . . (+579) . . Nm 2001 IMO Shortlist Problems/C3 (New page: == Problem == Define a <math>k</math>-<i>clique</i> to be a set of <math>k</math> people such that every pair of them are acquainted with each other. At a certain party, every pair of 3-cl...)
- 18:19, 20 August 2008 (diff | hist) . . (+650) . . Nm 2001 IMO Shortlist Problems/C2 (New page: == Problem == Let <math>n</math> be an odd integer greater than 1 and let <math>c_1, c_2, \ldots, c_n</math> be integers. For each permutation <math>a = (a_1, a_2, \ldots, a_n)</math> of <...)
- 18:17, 20 August 2008 (diff | hist) . . (+462) . . Nm 2001 IMO Shortlist Problems/A6 (New page: == Problem == Prove that for all positive real numbers <math>a,b,c</math>, <center><math>\frac {a}{\sqrt {a^2 + 8bc}} + \frac {b}{\sqrt {b^2 + 8ca}} + \frac {c}{\sqrt {c^2 + 8ab}} \geq 1.<...)
- 18:16, 20 August 2008 (diff | hist) . . (+549) . . Nm 2001 IMO Shortlist Problems/A5 (New page: == Problem == Find all positive integers <math>a_1, a_2, \ldots, a_n</math> such that <center><math>\frac {99}{100} = \frac {a_0}{a_1} + \frac {a_1}{a_2} + \cdots + \frac {a_{n - 1}}{a_n},...)
- 18:14, 20 August 2008 (diff | hist) . . (+445) . . Nm 2001 IMO Shortlist Problems/A4 (New page: == Problem == Find all functions <math>f: \mathbb{R} \rightarrow \mathbb{R}</math>, satisfying <center><math>f(xy)(f(x) - f(y)) = (x - y)f(x)f(y)</math></center> for all <math>x,y</math>. ...)
- 18:13, 20 August 2008 (diff | hist) . . (+61) . . Nm Category:Functional Equation (New page: This page lists all the functional equations in the AopsWiki.) (current)
- 18:06, 20 August 2008 (diff | hist) . . (+505) . . Nm 2001 IMO Shortlist Problems/A2 (New page: == Problem == Let <math>a_0, a_1, a_2, \ldots</math> be an arbitrary infinite sequence of positive numbers. Show that the inequality <math>1 + a_n > a_{n - 1} \sqrt [n]{2}</math> holds fo...)
- 18:01, 20 August 2008 (diff | hist) . . (+42) . . m 1999 IMO Problems/Problem 2
- 18:00, 20 August 2008 (diff | hist) . . (+42) . . m 2001 IMO Shortlist Problems/A3
- 17:59, 20 August 2008 (diff | hist) . . (+42) . . m 2004 USAMO Problems/Problem 5
- 17:59, 20 August 2008 (diff | hist) . . (-166) . . m 2002 USAMO Problems/Problem 2
- 17:58, 20 August 2008 (diff | hist) . . (-414) . . m 2002 IMO Shortlist Problems/A2 (current)
- 17:56, 20 August 2008 (diff | hist) . . (+1,087) . . 2003 USAMO Problems (→Day 2)
- 17:55, 20 August 2008 (diff | hist) . . (+635) . . N 2003 USAMO Problems/Problem 6 (New page: == Problem == At the vertices of a regular hexagon are written six nonnegative integers whose sum is 2003. Bert is allowed to make moves of the following form: he may pick a vertex and re...)
- 17:53, 20 August 2008 (diff | hist) . . (+478) . . N 2003 USAMO Problems/Problem 5 (New page: == Problem == Let <math>a</math>, <math>b</math>, <math>c</math> be positive real numbers. Prove that <center><math>\dfrac{(2a + b + c)^2}{2a^2 + (b + c)^2} + \dfrac{(2b + c + a)^2}{2b^2 ...)
- 17:49, 20 August 2008 (diff | hist) . . (+654) . . N 2003 USAMO Problems/Problem 4 (New page: == Problem == Let <math>ABC</math> be a triangle. A circle passing through <math>A</math> and <math>B</math> intersects segments <math>AC</math> and <math>BC</math> at <math>D</math> and ...)
- 19:53, 22 July 2008 (diff | hist) . . (+1) . . m Chicago ARML
- 22:16, 17 July 2008 (diff | hist) . . (-106) . . m 1989 AIME Problems/Problem 15
- 22:14, 17 July 2008 (diff | hist) . . (-87) . . m 1989 AIME Problems/Problem 14
- 22:12, 17 July 2008 (diff | hist) . . (-36) . . m 1989 AIME Problems/Problem 13
- 22:12, 17 July 2008 (diff | hist) . . (-63) . . m 1989 AIME Problems/Problem 12
- 22:11, 17 July 2008 (diff | hist) . . (-30) . . m 1989 AIME Problems/Problem 11
- 22:10, 17 July 2008 (diff | hist) . . (-42) . . m 1989 AIME Problems/Problem 10
- 22:10, 17 July 2008 (diff | hist) . . (-9) . . m 1989 AIME Problems/Problem 9
- 22:09, 17 July 2008 (diff | hist) . . (-21) . . m 1989 AIME Problems/Problem 8
- 22:09, 17 July 2008 (diff | hist) . . (-170) . . m 1989 AIME Problems/Problem 7
- 22:09, 17 July 2008 (diff | hist) . . (-30) . . m 1989 AIME Problems/Problem 5
- 22:07, 17 July 2008 (diff | hist) . . (-24) . . m 1989 AIME Problems/Problem 4
- 22:06, 17 July 2008 (diff | hist) . . (-66) . . m 1989 AIME Problems/Problem 6
- 23:05, 8 July 2008 (diff | hist) . . (+3,897) . . m How should I prepare? (:D you guys can add more)
- 22:55, 8 July 2008 (diff | hist) . . (+87) . . m How should I prepare? (→Cheat Sheets)
- 12:57, 7 July 2008 (diff | hist) . . (+20) . . Nm Cevians (Redirecting to Cevian) (current)
- 12:56, 7 July 2008 (diff | hist) . . (+25) . . Nm Concurrency (Redirecting to Concurrence) (current)
- 23:10, 5 July 2008 (diff | hist) . . (+36) . . m 2006 AMC 10A Problems (→Problem 16)
- 23:09, 5 July 2008 (diff | hist) . . (+36) . . m 2006 AMC 10A Problems (→Problem 17)
- 23:07, 5 July 2008 (diff | hist) . . (+34) . . m 2006 AMC 12A Problems
- 23:07, 5 July 2008 (diff | hist) . . (+37) . . m 2006 AMC 12A Problems (→Problem 12)
- 23:05, 5 July 2008 (diff | hist) . . (+468) . . m 2008 AMC 10A Problems (→Problem 21)
- 23:03, 5 July 2008 (diff | hist) . . (+392) . . 2008 AMC 12A Problems/Problem 18 (→Solution)
- 22:45, 5 July 2008 (diff | hist) . . (+2,013) . . 2007 USAMO Problems/Problem 6
- 19:21, 5 July 2008 (diff | hist) . . (-10) . . m 2008 USAMO Problems/Problem 2 (→Solution 7 (inversion))
- 19:19, 5 July 2008 (diff | hist) . . (-26) . . m 2003 AIME I Problems/Problem 5
- 19:18, 5 July 2008 (diff | hist) . . (+325) . . m 1995 AHSME Problems/Problem 10 (→Solution)
- 17:22, 1 July 2008 (diff | hist) . . (+209) . . m
- 17:14, 1 July 2008 (diff | hist) . . (+33) . . Nm Holder inequality (Redirecting to Hölder's Inequality)
- 00:32, 6 June 2008 (diff | hist) . . (+330) . . m Math books (→Olympiad)
- 00:19, 6 June 2008 (diff | hist) . . (+116) . . m Math books (→Olympiad)
- 00:15, 6 June 2008 (diff | hist) . . (+75) . . m Math books (→Olympiad)
- 00:51, 11 March 2008 (diff | hist) . . (+365) . . m Geometric inequality
- 00:24, 11 March 2008 (diff | hist) . . (+210) . . m Inradius
- 00:20, 11 March 2008 (diff | hist) . . (+725) . . Incenter (→Properties of the Incenter)
- 00:01, 11 March 2008 (diff | hist) . . (+1,249) . . Menelaus' Theorem
- 23:12, 10 March 2008 (diff | hist) . . (-1) . . m Geometry/Olympiad
- 16:28, 5 March 2008 (diff | hist) . . (-1) . . m Partition (combinatorics) (→A Variation)
- 21:28, 13 February 2008 (diff | hist) . . (+1) . . m Ceva's Theorem (→Other Notes)
- 13:39, 7 February 2008 (diff | hist) . . (+2) . . m Sophie Germain Identity
- 12:03, 7 February 2008 (diff | hist) . . (+600) . . Base numbers (→Example Problems)
- 22:34, 4 February 2008 (diff | hist) . . (-2) . . m Vector (→Vector Operations)
- 17:22, 3 February 2008 (diff | hist) . . (+1,732) . . m 2000 AIME I Problems/Problem 14
- 02:40, 29 December 2007 (diff | hist) . . (+27) . . m Lucas' Theorem
- 02:03, 29 December 2007 (diff | hist) . . (+8) . . m Arithmetic Mean-Geometric Mean Inequality (→Theorem)
- 01:50, 29 December 2007 (diff | hist) . . (+120) . . m Jensen's Inequality (→Intermediate)
- 22:07, 20 December 2007 (diff | hist) . . (+1) . . m Power Mean Inequality (→Inequality)
- 22:47, 19 December 2007 (diff | hist) . . (+329) . . Inscribed angle (current)
- 14:26, 19 December 2007 (diff | hist) . . (+155) . . Minkowski Inequality
- 01:07, 19 December 2007 (diff | hist) . . (-4) . . m Phi (spelling)
- 00:56, 19 December 2007 (diff | hist) . . (+35) . . Trivial Inequality (→Introductory)
- 00:34, 19 December 2007 (diff | hist) . . (+303) . . Triangle Inequality (→Example Problems)
- 00:24, 19 December 2007 (diff | hist) . . (0) . . m 2001 IMO Problems/Problem 2 (→Alternate Solution using Jensen's)
- 00:16, 19 December 2007 (diff | hist) . . (+184) . . m Number theory (→Resources)
- 13:37, 18 December 2007 (diff | hist) . . (0) . . m Diophantine equation (→Sum of Fourth Powers)
- 19:21, 6 December 2007 (diff | hist) . . (+367) . . Euler's identity
- 19:06, 6 December 2007 (diff | hist) . . (0) . . m Fibonacci sequence (→Binet's formula)
- 14:08, 1 December 2007 (diff | hist) . . (+277) . . m 2000 AIME I Problems (→Problem 4)
- 15:16, 25 November 2007 (diff | hist) . . (+648) . . m 2002 AIME I Problems/Problem 15
- 15:15, 25 November 2007 (diff | hist) . . (+376) . . m 2002 AIME I Problems/Problem 14
- 15:15, 25 November 2007 (diff | hist) . . (-92) . . m 2002 AIME I Problems/Problem 13 (→See also)
- 15:14, 25 November 2007 (diff | hist) . . (-92) . . m 2002 AIME I Problems/Problem 12 (→See also)
- 15:14, 25 November 2007 (diff | hist) . . (-92) . . m 2002 AIME I Problems/Problem 11 (→See also)
- 15:14, 25 November 2007 (diff | hist) . . (-92) . . m 2002 AIME I Problems/Problem 10 (→See also)
- 15:14, 25 November 2007 (diff | hist) . . (-92) . . m 2002 AIME I Problems/Problem 9 (→See also)
- 15:14, 25 November 2007 (diff | hist) . . (-102) . . m 2002 AIME I Problems/Problem 8
- 15:13, 25 November 2007 (diff | hist) . . (-92) . . m 2002 AIME I Problems/Problem 7 (→See also)
- 15:13, 25 November 2007 (diff | hist) . . (-92) . . m 2002 AIME I Problems/Problem 6 (→See also)
- 15:12, 25 November 2007 (diff | hist) . . (-92) . . m 2002 AIME I Problems/Problem 5 (→See also)
- 15:12, 25 November 2007 (diff | hist) . . (-92) . . m 2002 AIME I Problems/Problem 4 (→See also)
- 15:11, 25 November 2007 (diff | hist) . . (-92) . . m 2002 AIME I Problems/Problem 2 (→See also)
- 15:10, 25 November 2007 (diff | hist) . . (-22) . . m 2002 AIME I Problems/Problem 1 (→See also)
- 15:07, 25 November 2007 (diff | hist) . . (+6,523) . . 2002 AIME I Problems
- 12:42, 25 November 2007 (diff | hist) . . (+85) . . m Arithmetic Mean-Geometric Mean Inequality
- 12:37, 25 November 2007 (diff | hist) . . (+194) . . m Derangement
- 01:59, 25 November 2007 (diff | hist) . . (+165) . . m User talk:Minsoens
- 01:57, 25 November 2007 (diff | hist) . . (+610) . . m Excircle
- 00:46, 25 November 2007 (diff | hist) . . (+63) . . m Functional equation (→Problem Examples)
- 02:59, 24 November 2007 (diff | hist) . . (+277) . . m 2000 AIME I Problems/Problem 4
- 14:42, 21 November 2007 (diff | hist) . . (+584) . . m 2003 AIME II Problems/Problem 15
- 14:41, 21 November 2007 (diff | hist) . . (+567) . . m 2003 AIME II Problems/Problem 14
- 14:41, 21 November 2007 (diff | hist) . . (+311) . . m 2003 AIME II Problems/Problem 13
- 14:41, 21 November 2007 (diff | hist) . . (-94) . . m 2003 AIME II Problems/Problem 12
- 14:40, 21 November 2007 (diff | hist) . . (+542) . . m 2003 AIME II Problems/Problem 11
- 14:40, 21 November 2007 (diff | hist) . . (+102) . . m 2003 AIME II Problems/Problem 10
- 14:39, 21 November 2007 (diff | hist) . . (+20) . . m 2003 AIME II Problems/Problem 9
- 14:38, 21 November 2007 (diff | hist) . . (+98) . . m 2003 AIME II Problems/Problem 8
- 14:38, 21 November 2007 (diff | hist) . . (+101) . . m 2003 AIME II Problems/Problem 7
- 14:37, 21 November 2007 (diff | hist) . . (+388) . . m 2003 AIME II Problems/Problem 6
- 14:37, 21 November 2007 (diff | hist) . . (+420) . . m 2003 AIME II Problems/Problem 5
- 14:37, 21 November 2007 (diff | hist) . . (+201) . . m 2003 AIME II Problems/Problem 4
- 14:36, 21 November 2007 (diff | hist) . . (+358) . . m 2003 AIME II Problems/Problem 3
- 14:36, 21 November 2007 (diff | hist) . . (+61) . . m 2003 AIME II Problems/Problem 2
- 14:31, 21 November 2007 (diff | hist) . . (+5,316) . . 2003 AIME II Problems
- 15:38, 20 November 2007 (diff | hist) . . (+1) . . m 1997 AIME Problems
- 15:37, 20 November 2007 (diff | hist) . . (+503) . . m 1997 AIME Problems/Problem 15
- 15:37, 20 November 2007 (diff | hist) . . (+497) . . m 1997 AIME Problems/Problem 13
- 15:36, 20 November 2007 (diff | hist) . . (-88) . . m 1997 AIME Problems/Problem 12
- 15:35, 20 November 2007 (diff | hist) . . (+369) . . m 1997 AIME Problems/Problem 12
- 15:34, 20 November 2007 (diff | hist) . . (+56) . . m 1997 AIME Problems/Problem 11
- 15:34, 20 November 2007 (diff | hist) . . (+814) . . m 1997 AIME Problems/Problem 10
- 15:33, 20 November 2007 (diff | hist) . . (+489) . . m 1997 AIME Problems/Problem 9
- 15:33, 20 November 2007 (diff | hist) . . (+222) . . m 1997 AIME Problems/Problem 8
- 15:32, 20 November 2007 (diff | hist) . . (+535) . . m 1997 AIME Problems/Problem 7
- 15:32, 20 November 2007 (diff | hist) . . (+351) . . m 1997 AIME Problems/Problem 6
- 15:32, 20 November 2007 (diff | hist) . . (+459) . . m 1997 AIME Problems/Problem 5
- 15:30, 20 November 2007 (diff | hist) . . (+213) . . m 1997 AIME Problems/Problem 4
- 15:30, 20 November 2007 (diff | hist) . . (+14) . . m 1997 AIME Problems/Problem 3 (→See also)
- 15:29, 20 November 2007 (diff | hist) . . (+14) . . m 1997 AIME Problems/Problem 2 (→See also)
- 15:28, 20 November 2007 (diff | hist) . . (+28) . . m 1997 AIME Problems/Problem 1
- 15:27, 20 November 2007 (diff | hist) . . (+4,044) . . 1997 AIME Problems
- 02:33, 20 November 2007 (diff | hist) . . (+28) . . m 2006 AIME II Problems (→Problem 12)
- 01:00, 20 November 2007 (diff | hist) . . (+213) . . Wilson's Theorem
- 00:46, 20 November 2007 (diff | hist) . . (+988) . . m 2001 AIME II Problems/Problem 15
- 00:45, 20 November 2007 (diff | hist) . . (+436) . . m 2001 AIME II Problems/Problem 14
- 00:45, 20 November 2007 (diff | hist) . . (+408) . . m 2001 AIME II Problems/Problem 13
- 00:44, 20 November 2007 (diff | hist) . . (+616) . . m 2001 AIME II Problems/Problem 12
- 00:44, 20 November 2007 (diff | hist) . . (+462) . . m 2001 AIME II Problems/Problem 11
- 00:43, 20 November 2007 (diff | hist) . . (+224) . . m 2001 AIME II Problems/Problem 10
- 00:43, 20 November 2007 (diff | hist) . . (+316) . . m 2001 AIME II Problems/Problem 8
- 00:42, 20 November 2007 (diff | hist) . . (+885) . . m 2001 AIME II Problems/Problem 7
- 00:42, 20 November 2007 (diff | hist) . . (+510) . . m 2001 AIME II Problems/Problem 6
- 00:41, 20 November 2007 (diff | hist) . . (+399) . . m 2001 AIME II Problems/Problem 5
- 00:40, 20 November 2007 (diff | hist) . . (+440) . . m 2001 AIME II Problems/Problem 4
- 00:40, 20 November 2007 (diff | hist) . . (+295) . . m 2001 AIME II Problems/Problem 3
- 00:37, 20 November 2007 (diff | hist) . . (+1) . . m 2001 AIME II Problems/Problem 2 (→See also)
- 00:36, 20 November 2007 (diff | hist) . . (0) . . m 2001 AIME II Problems/Problem 2 (→See also)
- 00:35, 20 November 2007 (diff | hist) . . (-92) . . m 2002 AIME I Problems/Problem 3
- 00:35, 20 November 2007 (diff | hist) . . (+487) . . m 2001 AIME II Problems/Problem 2
- 00:34, 20 November 2007 (diff | hist) . . (+5,756) . . 2001 AIME II Problems
- 00:27, 20 November 2007 (diff | hist) . . (+393) . . m 2001 AIME I Problems/Problem 15
- 00:26, 20 November 2007 (diff | hist) . . (+232) . . m 2001 AIME I Problems/Problem 14
- 00:25, 20 November 2007 (diff | hist) . . (+343) . . m 2001 AIME I Problems/Problem 13
- 00:25, 20 November 2007 (diff | hist) . . (+214) . . m 2001 AIME I Problems/Problem 12
- 00:24, 20 November 2007 (diff | hist) . . (+805) . . m 2001 AIME I Problems/Problem 11
- 00:24, 20 November 2007 (diff | hist) . . (+396) . . m 2001 AIME I Problems/Problem 10
- 00:23, 20 November 2007 (diff | hist) . . (+637) . . m 2001 AIME I Problems/Problem 9
- 00:23, 20 November 2007 (diff | hist) . . (+241) . . m 2001 AIME I Problems/Problem 8
- 00:22, 20 November 2007 (diff | hist) . . (+427) . . m 2001 AIME I Problems/Problem 7
- 00:21, 20 November 2007 (diff | hist) . . (+269) . . m 2001 AIME I Problems/Problem 5
- 00:21, 20 November 2007 (diff | hist) . . (+443) . . m 2001 AIME I Problems/Problem 4
- 00:20, 20 November 2007 (diff | hist) . . (+77) . . m 2001 AIME I Problems/Problem 3
- 00:19, 20 November 2007 (diff | hist) . . (+401) . . m 2001 AIME I Problems/Problem 2
- 00:18, 20 November 2007 (diff | hist) . . (+82) . . m 2001 AIME I Problems/Problem 1
- 00:15, 20 November 2007 (diff | hist) . . (+6,147) . . 2001 AIME I Problems
- 20:19, 19 November 2007 (diff | hist) . . (+985) . . Mock AIME 1 2006-2007 Problems/Problem 8
- 18:29, 19 November 2007 (diff | hist) . . (+1) . . m Area (→Area of a Quadrilateral)
- 17:59, 19 November 2007 (diff | hist) . . (+306) . . m 2005 AIME I Problems/Problem 10
- 17:35, 19 November 2007 (diff | hist) . . (+893) . . 2004 AIME I Problems/Problem 14
- 14:17, 19 November 2007 (diff | hist) . . (-168) . . 1998 AIME Problems/Problem 1
- 14:14, 19 November 2007 (diff | hist) . . (+134) . . Least common multiple
- 13:53, 19 November 2007 (diff | hist) . . (+94) . . m Generating function
- 13:44, 19 November 2007 (diff | hist) . . (+307) . . User talk:Minsoens (→Images)
- 09:30, 17 November 2007 (diff | hist) . . (+917) . . Ptolemy's Theorem
- 20:15, 16 November 2007 (diff | hist) . . (+7) . . 1991 AIME Problems/Problem 14
- 20:12, 16 November 2007 (diff | hist) . . (+720) . . N File:AIME 1991 Solution 14.png (defaultpen(fontsize(8)); pair A=expi(-pi/2-acos(475/486)), B=expi(-pi/2+acos(475/486)), C=expi(-pi/2+acos(475/486)+acos(7/18)), D=expi(-pi/2+acos(475/486)+2*acos(7/18)), E=expi(-pi/2+acos(475/486)+3*acos(7/18)), F=expi(-pi/2-acos(475/486)-acos(7/18)); dra)
- 15:34, 13 November 2007 (diff | hist) . . (+358) . . 1992 AIME Problems/Problem 10
- 15:22, 13 November 2007 (diff | hist) . . (+408) . . N File:AIME 1992 Solution 10.png (defaultpen(fontsize(8)); path kt = arc((20,0),20,0,90)..arc((0,20),20,0,90)--(40,40)--cycle; fill(kt,gray); draw((0,-30)--(0,50));draw((-30,0)--(50,0)); draw(circle((20,0),20));draw(circle((0,20),20)); draw((40,0)--(40,40)--(0,40)); label("$a$",(50,0),(2,)
- 20:29, 11 November 2007 (diff | hist) . . (+195) . . 1996 AIME Problems/Problem 1
- 20:28, 11 November 2007 (diff | hist) . . (+230) . . 1996 AIME Problems (→Problem 1)
- 20:27, 11 November 2007 (diff | hist) . . (0) . . N File:AIME 1996 Problem 01.png (current)
- 20:24, 11 November 2007 (diff | hist) . . (-86) . . m 1989 AIME Problems/Problem 10 (→See also)
- 20:22, 11 November 2007 (diff | hist) . . (+775) . . 1988 AIME Problems/Problem 15
- 20:21, 11 November 2007 (diff | hist) . . (+13) . . m 1988 AIME Problems/Problem 14 (→Solution)
- 20:19, 11 November 2007 (diff | hist) . . (+3,971) . . 1988 AIME Problems
- 20:16, 11 November 2007 (diff | hist) . . (0) . . N File:AIME 1988 Problem 12.png (current)
- 20:11, 11 November 2007 (diff | hist) . . (0) . . N File:AIME 1988 Problem 06.png (current)
- 19:59, 11 November 2007 (diff | hist) . . (-1,117) . . m 2000 AIME II Problems
- 19:51, 11 November 2007 (diff | hist) . . (+5,936) . . m 2000 AIME I Problems
- 19:44, 11 November 2007 (diff | hist) . . (-681) . . m 2000 AIME II Problems/Problem 15
- 19:43, 11 November 2007 (diff | hist) . . (+950) . . m 2000 AIME I Problems/Problem 15
- 19:43, 11 November 2007 (diff | hist) . . (+40) . . m 2000 AIME II Problems/Problem 14
- 19:42, 11 November 2007 (diff | hist) . . (+493) . . m 2000 AIME I Problems/Problem 14
- 19:41, 11 November 2007 (diff | hist) . . (-191) . . m 2000 AIME II Problems/Problem 13
- 19:40, 11 November 2007 (diff | hist) . . (+525) . . m 2000 AIME I Problems/Problem 13
- 19:40, 11 November 2007 (diff | hist) . . (+284) . . m 2000 AIME II Problems/Problem 12
- 19:39, 11 November 2007 (diff | hist) . . (+18) . . m 2000 AIME I Problems/Problem 12
- 19:36, 11 November 2007 (diff | hist) . . (+256) . . m 2000 AIME II Problems/Problem 11
- 19:35, 11 November 2007 (diff | hist) . . (+276) . . m 2000 AIME I Problems/Problem 11
- 19:34, 11 November 2007 (diff | hist) . . (-120) . . m 2000 AIME II Problems/Problem 10
- 19:32, 11 November 2007 (diff | hist) . . (+326) . . m 2000 AIME I Problems/Problem 10
- 19:32, 11 November 2007 (diff | hist) . . (-195) . . m 2000 AIME II Problems/Problem 9
- 19:32, 11 November 2007 (diff | hist) . . (+405) . . m 2000 AIME I Problems/Problem 9
- 19:31, 11 November 2007 (diff | hist) . . (-176) . . m 2000 AIME II Problems/Problem 8
- 19:30, 11 November 2007 (diff | hist) . . (+538) . . m 2000 AIME I Problems/Problem 8
- 19:29, 11 November 2007 (diff | hist) . . (-124) . . m 2000 AIME II Problems/Problem 7
- 19:29, 11 November 2007 (diff | hist) . . (+270) . . m 2000 AIME I Problems/Problem 7
- 19:28, 11 November 2007 (diff | hist) . . (+180) . . m 2000 AIME II Problems/Problem 6
- 19:28, 11 November 2007 (diff | hist) . . (+294) . . m 2000 AIME I Problems/Problem 6
- 19:26, 11 November 2007 (diff | hist) . . (-103) . . m 2000 AIME II Problems/Problem 5
- 19:26, 11 November 2007 (diff | hist) . . (+315) . . m 2000 AIME I Problems/Problem 5
- 19:25, 11 November 2007 (diff | hist) . . (-99) . . m 2000 AIME II Problems/Problem 4
- 19:24, 11 November 2007 (diff | hist) . . (+259) . . m 2000 AIME I Problems/Problem 4
- 19:24, 11 November 2007 (diff | hist) . . (+172) . . m 2000 AIME II Problems/Problem 3
- 19:23, 11 November 2007 (diff | hist) . . (+257) . . m 2000 AIME I Problems/Problem 3
- 19:22, 11 November 2007 (diff | hist) . . (+545) . . m 2000 AIME I Problems/Problem 2
- 19:22, 11 November 2007 (diff | hist) . . (-366) . . m 2000 AIME II Problems/Problem 2
- 19:21, 11 November 2007 (diff | hist) . . (+18) . . m 2000 AIME II Problems/Problem 1
- 19:19, 11 November 2007 (diff | hist) . . (+262) . . m 2000 AIME I Problems/Problem 1
- 19:16, 11 November 2007 (diff | hist) . . (+950) . . m 2000 AIME II Problems/Problem 15
- 19:15, 11 November 2007 (diff | hist) . . (+493) . . m 2000 AIME II Problems/Problem 14
- 19:15, 11 November 2007 (diff | hist) . . (+525) . . m 2000 AIME II Problems/Problem 13
- 19:14, 11 November 2007 (diff | hist) . . (+302) . . m 2000 AIME II Problems/Problem 12
- 19:14, 11 November 2007 (diff | hist) . . (+275) . . m 2000 AIME II Problems/Problem 11
- 19:14, 11 November 2007 (diff | hist) . . (+457) . . m 2000 AIME II Problems/Problem 10
- 19:13, 11 November 2007 (diff | hist) . . (+405) . . m 2000 AIME II Problems/Problem 9
- 19:13, 11 November 2007 (diff | hist) . . (+538) . . m 2000 AIME II Problems/Problem 8
- 19:12, 11 November 2007 (diff | hist) . . (+400) . . m 2000 AIME II Problems/Problem 7
- 19:11, 11 November 2007 (diff | hist) . . (+294) . . m 2000 AIME II Problems/Problem 6
- 19:11, 11 November 2007 (diff | hist) . . (+445) . . m 2000 AIME II Problems/Problem 5
- 19:10, 11 November 2007 (diff | hist) . . (+248) . . m 2000 AIME II Problems/Problem 4
- 19:10, 11 November 2007 (diff | hist) . . (+257) . . m 2000 AIME II Problems/Problem 3
- 19:09, 11 November 2007 (diff | hist) . . (+545) . . m 2000 AIME II Problems/Problem 2
- 19:08, 11 November 2007 (diff | hist) . . (+262) . . m 2000 AIME II Problems/Problem 1
- 19:04, 11 November 2007 (diff | hist) . . (+5,936) . . 2000 AIME II Problems
- 22:10, 9 November 2007 (diff | hist) . . (+28) . . m 2006 AIME II Problems/Problem 12 (→Problem)
- 22:09, 9 November 2007 (diff | hist) . . (0) . . N File:Aime2006-2-11.JPG (current)
- 22:03, 9 November 2007 (diff | hist) . . (-20) . . 2005 AIME II Problems/Problem 12 (→Solution)
- 22:02, 9 November 2007 (diff | hist) . . (+456) . . N File:AIME 2005II Solution 12 1.png (defaultpen(fontsize(8)); pair A=(0,9), B=(9,9), C=(9,0), D=(0,0), E=(2.5-0.5*sqrt(7),9), F=(6.5-0.5*sqrt(7),9), G=(4.5,9), O=(4.5,4.5); draw(A--B--C--D--A);draw(E--O--F);draw(G--O); dot(A^^B^^C^^D^^E^^F^^G^^O); label("A",A,(-1,1));label("B",B,(1,1));label) (current)
- 21:49, 9 November 2007 (diff | hist) . . (-5) . . m 2005 AIME I Problems/Problem 7 (→Solution 2)
- 21:46, 9 November 2007 (diff | hist) . . (+446) . . N File:AIME 2005I Solution 7 2.png (defaultpen(fontsize(8)); pair A=(0,0), B=(9+sqrt(141),0), C=(5+sqrt(141),4*sqrt(3)), D=(5,5*sqrt(3)), E=((9+sqrt(141))/2,(9+sqrt(141))/2*sqrt(3)); draw(A--B--C--D--A);draw(D--E--C); dot(A^^B^^C^^D^^E); label("A",A,(-1,-1));label("B",B,(1,-1));label("C",C,) (current)
- 21:28, 9 November 2007 (diff | hist) . . (+72) . . m 2005 AIME I Problems/Problem 7 (→Solution 1)
- 21:26, 9 November 2007 (diff | hist) . . (+504) . . N File:AIME 2005I Solution 7 1.png (defaultpen(fontsize(8)); pair A=(0,0), B=(9+sqrt(141),0), C=(5+sqrt(141),4*sqrt(3)), D=(5,5*sqrt(3)), E=(5,0), F=(5+sqrt(141),0), G=(5,4*sqrt(3)); draw(A--B--C--D--A);draw(D--E);draw(C--F);draw(G--C); dot(A^^B^^C^^D^^E^^F^^G); label("A",A,(-1,-1));label(") (current)
- 20:36, 9 November 2007 (diff | hist) . . (+36) . . m 2006 AMC 12A Problems (→Problem 19)
- 20:35, 9 November 2007 (diff | hist) . . (0) . . m 2006 AMC 12A Problems (→Problem 16)
- 20:34, 9 November 2007 (diff | hist) . . (0) . . m 2006 AMC 12A Problems (→Problem 16)
- 20:34, 9 November 2007 (diff | hist) . . (+36) . . m 2006 AMC 12A Problems (→Problem 17)
- 20:34, 9 November 2007 (diff | hist) . . (+36) . . m 2006 AMC 12A Problems (→Problem 16)
- 20:26, 9 November 2007 (diff | hist) . . (+7,614) . . 2007 AMC 12B Problems
- 19:51, 9 November 2007 (diff | hist) . . (+36) . . m 2007 AMC 12B Problems (→Problem 3)
- 19:29, 8 November 2007 (diff | hist) . . (+34) . . m 2006 AMC 12A Problems/Problem 19
- 19:28, 8 November 2007 (diff | hist) . . (+408) . . N File:AMC12 2006A 19.png (defaultpen(fontsize(6)); draw(circle((2,4),4));draw(circle((14,9),9)); draw((0,-2)--(0,20));draw((-6,0)--(25,0)); draw((2,4)--(2,4)+4*expi(pi*4.5/11)); draw((14,9)--(14,9)+9*expi(pi*6/7)); label("4",(2,4)+2*expi(pi*4.5/11),(-1,0)); label("9",(14,9)+4.5*ex) (current)
- 19:12, 8 November 2007 (diff | hist) . . (+36) . . m 2006 AMC 12A Problems/Problem 17
- 19:11, 8 November 2007 (diff | hist) . . (+397) . . N File:AMC12 2006A 17.png (defaultpen(fontsize(10)); pair A=(0,3), B=(0,0), C=(3,0), D=(3,3), E=(3+5/3/sqrt(2),3+5/3/sqrt(2)), F; F=A+sqrt(9+5*sqrt(2))*expi(atan(5/(3*sqrt(2))/(3+(5/3/sqrt(2))))+atan(5/(3*sqrt(9+5*sqrt(2))))); draw(A--B--C--D--A);draw(A--F);draw(circle(E,5/3)); dot) (current)
- 18:49, 8 November 2007 (diff | hist) . . (-1) . . m 2006 AMC 12A Problems/Problem 17 (→Solution)
- 16:38, 8 November 2007 (diff | hist) . . (+1,475) . . Lucas' Theorem
- 11:22, 8 November 2007 (diff | hist) . . (+804) . . m Lucas' Theorem (→Proof)
- 10:50, 8 November 2007 (diff | hist) . . (+480) . . N Lucas' Theorem (New page: Let <math>p</math> be a prime. If <math>(\overline{n_mn_{m-1}\cdots n_0})_p</math> is the base <math>p</math> representation of <math>n</math> and <math>(\overline{i_mi_{m-1}\cdots i_0})_p...)
- 10:29, 8 November 2007 (diff | hist) . . (0) . . m Euler's totient function (→Formulas)
- 10:25, 8 November 2007 (diff | hist) . . (+31) . . m Euler's totient function (→Formulas)
- 10:15, 8 November 2007 (diff | hist) . . (-10) . . m Fermat's Little Theorem
- 21:45, 6 November 2007 (diff | hist) . . (+247) . . m Circumradius
- 16:29, 5 November 2007 (diff | hist) . . (+9) . . m Excircle (→Introductory)
- 20:56, 4 November 2007 (diff | hist) . . (+2) . . m Combination (→Formulas/Identities)
- 12:49, 4 November 2007 (diff | hist) . . (+1) . . m Roots of unity (→Uses of roots of unity)
- 21:10, 3 November 2007 (diff | hist) . . (+29) . . m Combination (→See also)
- 20:58, 3 November 2007 (diff | hist) . . (+164) . . Combination
- 20:43, 3 November 2007 (diff | hist) . . (-336) . . 2002 AIME II Problems/Problem 2 (wrong problem...?)
- 20:39, 3 November 2007 (diff | hist) . . (+33) . . m 2002 AIME I Problems/Problem 2
- 20:37, 3 November 2007 (diff | hist) . . (0) . . N File:AIME 2002I Problem 02.png (current)
- 20:36, 3 November 2007 (diff | hist) . . (+42) . . m 2002 AIME I Problems/Problem 10
- 20:35, 3 November 2007 (diff | hist) . . (0) . . N File:AIME 2002I Problem 10.png (current)
- 20:32, 3 November 2007 (diff | hist) . . (+669) . . 1999 AIME Problems/Problem 15
- 20:29, 3 November 2007 (diff | hist) . . (0) . . File:AIME 1999 Solution 15 1.png (uploaded a new version of "Image:AIME 1999 Solution 15 1.png": defaultpen(fontsize(8)); pair A=(0,0), B=(16,24), C=(34,0), P=(8,12), Q=(25,12), R=(17,0); draw(A--B--C--A);draw(P--Q--R--P); draw(A--foot(A,B,C));draw(B--foot(B,A,C));draw(C--foot(C,A,B))) (current)
- 20:18, 3 November 2007 (diff | hist) . . (0) . . File:AIME 1999 Solution 15 1.png (uploaded a new version of "Image:AIME 1999 Solution 15 1.png": defaultpen(fontsize(8)); pair A=(0,0), B=(16,24), C=(34,0), P=(8,12), Q=(25,12), R=(17,0); draw(A--B--C--A);draw(P--Q--R--P); draw(A--foot(A,B,C));draw(B--foot(B,A,C));draw(C--foot(C,A,B)))
- 20:14, 3 November 2007 (diff | hist) . . (0) . . File:AIME 1999 Solution 15 1.png (uploaded a new version of "Image:AIME 1999 Solution 15 1.png": defaultpen(fontsize(8)); pair A=(0,0), B=(16,24), C=(34,0), P=(8,12), Q=(25,12), R=(17,0); draw(A--B--C--A);draw(P--Q--R--P); draw(A--foot(A,B,C));draw(B--foot(B,A,C));draw(C--foot(C,A,B)))
- 20:10, 3 November 2007 (diff | hist) . . (+231) . . N File:AIME 1999 Solution 15 2.png (import three; currentprojection=orthographic(1/2,-1,1/2); triple A=(0,0,0), B=(16,24,0), C=(34,0,0), P=(8,12,0), Q=(25,12,0), R=(17,0,0), S=(16,12,12); draw(A--B--C--A); draw(P--Q--R--P); draw(S--P..S--Q..S--R); draw(S--(16,12,0));) (current)
- 20:10, 3 November 2007 (diff | hist) . . (+164) . . N File:AIME 1999 Solution 15 1.png (pair A=(0,0), B=(16,24), C=(34,0), P=(8,12), Q=(25,12), R=(17,0); draw(A--B--C--A);draw(P--Q--R--P); draw(A--foot(A,B,C));draw(B--foot(B,A,C));draw(C--foot(C,A,B));)
- 19:40, 3 November 2007 (diff | hist) . . (+120) . . m 1991 AIME Problems/Problem 4
- 19:34, 3 November 2007 (diff | hist) . . (+268) . . N File:AIME 1991 Solution 04.png (size(225,150,IgnoreAspect); defaultpen(fontsize(8)); real f(real x) {return log(x)/log(2)/5;} real g(real x) {return sin(5*pi*x);} pair F(real x) {return (x,f(x));} xaxis("$x$",LeftTicks); yaxis("$y$",ymax=2); draw(graph(f,0.00002,3),red);draw(graph(g,0.0) (current)
- 19:11, 3 November 2007 (diff | hist) . . (+43) . . m 1991 AIME Problems/Problem 12 (→Solution)
- 19:10, 3 November 2007 (diff | hist) . . (0) . . File:AIME 1991 Solution 12.png (uploaded a new version of "Image:AIME 1991 Solution 12.png": defaultpen(fontsize(8)); pair A=(0,28.8), B=(38.4,28.8), C=(38.4,0), D=(0,0), O, P=(23.4,28.8), Q=(38.4,8.8), R=(15,0), S=(0,20); O=intersectionpoint(A--C,B--D); draw(A--B--C--D--cycle);draw) (current)
- 19:02, 3 November 2007 (diff | hist) . . (+419) . . N File:AIME 1991 Solution 12.png (defaultpen(fontsize(8)); pair A=(0,28.8), B=(38.4,28.8), C=(38.4,0), D=(0,0), O, P=(23.4,28.8), Q=(38.4,8.8), R=(15,0), S=(0,20); O=intersectionpoint(A--C,B--D); draw(A--B--C--D--cycle);draw(P--R..Q--S); draw(P--Q--R--S--cycle); label("A",A,NW);label("B",)
- 18:47, 3 November 2007 (diff | hist) . . (+108) . . 1988 AIME Problems/Problem 7
- 18:43, 3 November 2007 (diff | hist) . . (+243) . . N File:AIME 1988 Solution 07.png (defaultpen(fontsize(8)); pair A=(3,11), B=(20,0), C=(0,0), D=(3,0); draw(A--B--C--cycle); draw(A--foot(A,B,C)); label("A",A,NW);label("B",B,SE);label("C",C,SW);label("D",D,SE); label("$h$",A/2+D/2,E);label("$3$",D/2,S);label("$17$",B/2+D/2,S);) (current)
- 18:28, 3 November 2007 (diff | hist) . . (+1,001) . . N File:Excircle-1.png (pair A=(0,0), B=(5,4), C=(6,0), I, X1, Y1, X2, Y2, X3, Y3, P1, F1, P2, F2, P3, F3; draw(A--B--C--cycle); X1=expi((angle(B-A)+angle(C-B))/2); Y1=expi((angle(C-A)+angle(B-C))/2); P1=intersectionpoint(B--10*X1+B, C--10*Y1+C);F1=foot(P1, B, C); draw(circle(P1) (current)
- 21:51, 15 October 2007 (diff | hist) . . (+615) . . N 2004 AMC 10A Problems/Problem 20 (New page: ==Problem== Points <math>E</math> and <math>F</math> are located on square <math>ABCD</math> so that <math>\triangle BEF</math> is equilateral. What is the ratio of the area of <math>\tria...)
- 21:48, 15 October 2007 (diff | hist) . . (0) . . N File:AMC10 2004A 20.png (current)
- 21:45, 15 October 2007 (diff | hist) . . (+758) . . N 2004 AMC 10A Problems/Problem 23 (New page: ==Problem== Circles <math>A</math>, <math>B</math>, and <math>C</math> are externally tangent to each other and internally tangent to circle <math>D</math>. Circles <math>B</math> and <mat...)
- 21:42, 15 October 2007 (diff | hist) . . (0) . . N File:AMC10 2004A 23.png (current)
- 21:39, 15 October 2007 (diff | hist) . . (+697) . . N 2004 AMC 12A Problems/Problem 18 (New page: ==Problem== Square <math>ABCD</math> has side length 2. A semicircle with diameter <math>\overline{AB}</math> is constructed inside the square, and the tangent to the semicircle from <math...)
- 21:35, 15 October 2007 (diff | hist) . . (0) . . N File:AMC10 2004A 22.png (current)
- 21:32, 15 October 2007 (diff | hist) . . (+665) . . N 2004 AMC 10A Problems/Problem 21 (New page: ==Problem== Two distinct lines pass through the center of three concentric circles of radii 3, 2, and 1. The area of the shaded region in the diagram is <math>\frac{8}{13}</math> of the ar...)
- 21:29, 15 October 2007 (diff | hist) . . (0) . . N File:AMC10 2004A 21.png (current)
- 21:14, 15 October 2007 (diff | hist) . . (+500) . . N 2004 AMC 10A Problems/Problem 9 (New page: ==Problem== In the figure, <math>\angle EAB</math> and <math>\angle ABC</math> are right angles. <math>AB=4, BC=6, AE=8</math>, and <math>AC</math> and <math>BE</math> intersect at <math>D...)
- 21:12, 15 October 2007 (diff | hist) . . (0) . . N File:AMC10 2004A 9.gif (current)
- 21:08, 15 October 2007 (diff | hist) . . (-44) . . m 2004 AMC 10A Problems/Problem 5
- 21:07, 15 October 2007 (diff | hist) . . (+637) . . N 2004 AMC 10A Problems/Problem 5 (New page: ==Problem== A set of three points is randomly chosen from the grid shown. Each three point set has the same probability of being chosen. What is the probability that the points lie on the ...)
- 21:03, 15 October 2007 (diff | hist) . . (0) . . N File:AMC10 2004A 4.gif (current)
- 20:57, 15 October 2007 (diff | hist) . . (+157) . . m Arithmetic sequence (→Example Problems and Solutions)
- 20:52, 15 October 2007 (diff | hist) . . (+239) . . m Geometry/Resources
- 13:52, 14 October 2007 (diff | hist) . . (-226) . . m Ptolemy's Inequality (fixed typo)
- 14:31, 6 October 2007 (diff | hist) . . (+22) . . m 1986 AIME Problems/Problem 14
- 14:11, 6 October 2007 (diff | hist) . . (0) . . N File:AIME 1986 Problem 14 sol.png (current)
- 23:49, 28 March 2007 (diff | hist) . . (+6,160) . . m 1994 AIME Problems
- 23:47, 28 March 2007 (diff | hist) . . (+749) . . m 1994 AIME Problems/Problem 15
- 23:45, 28 March 2007 (diff | hist) . . (+558) . . m 1994 AIME Problems/Problem 14
- 23:43, 28 March 2007 (diff | hist) . . (0) . . N File:AIME 1994 Problem 14.png (current)
- 23:42, 28 March 2007 (diff | hist) . . (+337) . . m 1994 AIME Problems/Problem 13
- 23:41, 28 March 2007 (diff | hist) . . (+357) . . m 1994 AIME Problems/Problem 12
- 23:40, 28 March 2007 (diff | hist) . . (+264) . . m 1994 AIME Problems/Problem 11
- 23:38, 28 March 2007 (diff | hist) . . (+303) . . m 1994 AIME Problems/Problem 10
- 23:35, 28 March 2007 (diff | hist) . . (+601) . . m 1994 AIME Problems/Problem 9
- 23:31, 28 March 2007 (diff | hist) . . (+66) . . m 1994 AIME Problems/Problem 8
- 23:30, 28 March 2007 (diff | hist) . . (+357) . . m 1994 AIME Problems/Problem 7
- 23:28, 28 March 2007 (diff | hist) . . (+226) . . m 1994 AIME Problems/Problem 6
- 23:26, 28 March 2007 (diff | hist) . . (+367) . . m 1994 AIME Problems/Problem 5
- 23:24, 28 March 2007 (diff | hist) . . (+328) . . m 1994 AIME Problems/Problem 4
- 23:22, 28 March 2007 (diff | hist) . . (+270) . . m 1994 AIME Problems/Problem 3
- 23:21, 28 March 2007 (diff | hist) . . (+587) . . m 1994 AIME Problems/Problem 2
- 23:19, 28 March 2007 (diff | hist) . . (0) . . m 1994 AIME Problems/Problem 1 (→See also)
- 23:19, 28 March 2007 (diff | hist) . . (+265) . . m 1994 AIME Problems/Problem 1
- 11:49, 26 March 2007 (diff | hist) . . (+7,109) . . m 1993 AIME Problems
- 11:46, 26 March 2007 (diff | hist) . . (+1,070) . . m 1993 AIME Problems/Problem 3
- 00:28, 26 March 2007 (diff | hist) . . (+557) . . m 1993 AIME Problems/Problem 15
- 00:24, 26 March 2007 (diff | hist) . . (+451) . . m 1993 AIME Problems/Problem 14
- 00:23, 26 March 2007 (diff | hist) . . (+597) . . m 1993 AIME Problems/Problem 13
- 00:22, 26 March 2007 (diff | hist) . . (+804) . . m 1993 AIME Problems/Problem 12
- 00:19, 26 March 2007 (diff | hist) . . (+551) . . m 1993 AIME Problems/Problem 11
- 00:18, 26 March 2007 (diff | hist) . . (+455) . . m 1993 AIME Problems/Problem 10
- 00:15, 26 March 2007 (diff | hist) . . (-90) . . m 1993 AIME Problems/Problem 9 (→See also)
- 00:15, 26 March 2007 (diff | hist) . . (+537) . . m 1993 AIME Problems/Problem 9
- 00:13, 26 March 2007 (diff | hist) . . (0) . . N File:AIME 1993 Problem 9.png (current)
- 00:11, 26 March 2007 (diff | hist) . . (+467) . . m 1993 AIME Problems/Problem 8
- 00:10, 26 March 2007 (diff | hist) . . (+761) . . m 1993 AIME Problems/Problem 7
- 00:08, 26 March 2007 (diff | hist) . . (+209) . . m 1993 AIME Problems/Problem 6
- 00:06, 26 March 2007 (diff | hist) . . (+126) . . m 1993 AIME Problems/Problem 5
- 00:05, 26 March 2007 (diff | hist) . . (+207) . . m 1993 AIME Problems/Problem 4
- 23:44, 25 March 2007 (diff | hist) . . (0) . . m 1993 AIME Problems/Problem 2 (→See also)
- 23:44, 25 March 2007 (diff | hist) . . (+495) . . m 1993 AIME Problems/Problem 2
- 23:41, 25 March 2007 (diff | hist) . . (+115) . . m 1993 AIME Problems/Problem 1
- 23:03, 10 March 2007 (diff | hist) . . (+233) . . m AoPS Wiki:Discussion (→Suggestion - maybe add PDF's of contests)
- 22:51, 10 March 2007 (diff | hist) . . (+6) . . m 1992 AIME Problems/Problem 10
- 22:50, 10 March 2007 (diff | hist) . . (+6) . . m 1992 AIME Problems/Problem 8 (→Problem)
- 22:50, 10 March 2007 (diff | hist) . . (+5,111) . . m 1992 AIME Problems
- 22:46, 10 March 2007 (diff | hist) . . (+345) . . m 1992 AIME Problems/Problem 15
- 22:45, 10 March 2007 (diff | hist) . . (+555) . . m 1992 AIME Problems/Problem 14
- 22:42, 10 March 2007 (diff | hist) . . (+151) . . m 1992 AIME Problems/Problem 13
- 22:41, 10 March 2007 (diff | hist) . . (+879) . . m 1992 AIME Problems/Problem 12
- 22:39, 10 March 2007 (diff | hist) . . (0) . . N File:AIME 1992 Problem 12.png (current)
- 22:37, 10 March 2007 (diff | hist) . . (+733) . . m 1992 AIME Problems/Problem 11
- 22:35, 10 March 2007 (diff | hist) . . (+365) . . m 1992 AIME Problems/Problem 10
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