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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...)
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