User contributions
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- 16:48, 31 December 2008 (diff | hist) . . (+1,206) . . 1975 USAMO Problems/Problem 3 (added solution, probably needs to be spaced out differently.)
- 21:59, 31 August 2008 (diff | hist) . . (+821) . . 1989 AHSME Problems/Problem 29
- 13:10, 30 July 2008 (diff | hist) . . (+10) . . m Abacus (stub)
- 19:28, 26 July 2008 (diff | hist) . . (+1,231) . . 2003 AIME II Problems/Problem 6
- 16:00, 26 July 2008 (diff | hist) . . (+1,391) . . 1994 AIME Problems/Problem 7
- 15:40, 26 July 2008 (diff | hist) . . (+1) . . m 2001 AIME II Problems/Problem 14 (fixed typo)
- 15:36, 26 July 2008 (diff | hist) . . (+1,584) . . 2001 AIME II Problems/Problem 14
- 22:10, 22 July 2008 (diff | hist) . . (+343) . . Mock AIME 1 2007-2008 Problems/Problem 13 (current)
- 21:52, 22 July 2008 (diff | hist) . . (+701) . . 1994 AIME Problems/Problem 4
- 14:05, 10 July 2008 (diff | hist) . . (-1) . . m 2002 AIME I Problems/Problem 9
- 14:04, 10 July 2008 (diff | hist) . . (+399) . . 2002 AIME I Problems/Problem 9 (cheap proof of no remaining paintable integers)
- 16:17, 9 July 2008 (diff | hist) . . (+121) . . How should I prepare? (→Summer Camps: links)
- 18:43, 8 July 2008 (diff | hist) . . (+108) . . m Sum and difference of powers (LaTeX)
- 19:27, 7 July 2008 (diff | hist) . . (-1) . . m Trigonometric identities (→Law of Tangents)
- 19:26, 7 July 2008 (diff | hist) . . (+153) . . Trigonometric identities (→Law of Tangents: corrected errors)
- 21:49, 5 July 2008 (diff | hist) . . (+1,217) . . N 1995 AHSME Problems/Problem 26 (New page: == Problem == In the figure, <math>\overline{AB}</math> and <math>\overline{CD}</math> are diameters of the circle with center <math>O</math>, <math>\overline{AB} \perp \overline{CD}</math...)
- 21:22, 3 July 2008 (diff | hist) . . (+118) . . Division Algorithm (LaTeX,, stub)
- 23:25, 1 July 2008 (diff | hist) . . (+10) . . 1993 AIME Problems/Problem 11 (fixed link)
- 23:24, 1 July 2008 (diff | hist) . . (+1,582) . . 1993 AIME Problems/Problem 11
- 22:38, 1 July 2008 (diff | hist) . . (+1,722) . . 1993 AIME Problems/Problem 13 (moved 1st solution to appropriate section, added 2nd solution)
- 23:14, 29 June 2008 (diff | hist) . . (+862) . . 2002 AIME I Problems/Problem 8
- 22:27, 29 June 2008 (diff | hist) . . (+735) . . 2002 AIME I Problems/Problem 6
- 17:12, 28 June 2008 (diff | hist) . . (+105) . . 1960 IMO Problems/Problem 2 (fixed error in solution (x less than -1/2 makes the expression nonreal))
- 14:34, 25 June 2008 (diff | hist) . . (+1,370) . . 1960 IMO Problems/Problem 3
- 23:43, 24 June 2008 (diff | hist) . . (+1,442) . . 2002 AIME II Problems/Problem 13
- 15:28, 24 June 2008 (diff | hist) . . (+1,556) . . 1992 AIME Problems/Problem 11
- 14:25, 24 June 2008 (diff | hist) . . (+25) . . m 2002 AIME II Problems/Problem 9
- 14:24, 24 June 2008 (diff | hist) . . (+1,022) . . 2002 AIME II Problems/Problem 9
- 23:00, 23 June 2008 (diff | hist) . . (+772) . . 2002 AIME II Problems/Problem 10
- 19:06, 23 June 2008 (diff | hist) . . (+444) . . 2002 AIME II Problems/Problem 11
- 15:39, 23 June 2008 (diff | hist) . . (+1,064) . . 2002 AIME II Problems/Problem 7
- 14:50, 23 June 2008 (diff | hist) . . (+607) . . 1992 AIME Problems/Problem 9 (LaTeXed existing solution and added another.)
- 21:44, 19 June 2008 (diff | hist) . . (+103) . . m Recursion (added example)
- 19:00, 18 June 2008 (diff | hist) . . (+1,175) . . N 2006 Alabama ARML TST Problems/Problem 7 (New page: ==Problem== Four equilateral triangles are drawn such that each one shares a different side with a square of side length 10. None of the areas of the triangles overlap with the area of the...)
- 19:32, 17 June 2008 (diff | hist) . . (+56) . . m 2007 Alabama ARML TST Problems (→Problem 7: made LaTeX floor function look better)
- 14:17, 17 June 2008 (diff | hist) . . (+478) . . N 2007 Alabama ARML TST Problems/Problem 4 (New page: ==Problem== Find the smallest positive integer <math>N</math> such that the product <math>19999N</math> ends in the four digits 2007. ==Solution== The problem states that <math>19999N \e...) (current)
- 12:44, 17 June 2008 (diff | hist) . . (+2) . . m 1995 AHSME Problems/Problem 22 (changed diagram from having sides of lengths 13, 19, 5, 25, 31 to 13, 19, 20, 25, 31 as stated in the problem)
- 00:12, 17 June 2008 (diff | hist) . . (+15) . . 2007 Alabama ARML TST Problems/Problem 6 (current)
- 00:12, 17 June 2008 (diff | hist) . . (-14) . . 2007 Alabama ARML TST Problems/Problem 6
- 00:11, 17 June 2008 (diff | hist) . . (+367) . . N 2007 Alabama ARML TST Problems/Problem 6 (New page: ==Problem== If <math>r</math> is a root of <math>x^2+x+6</math>, then compute the value of <cmath>r^3+2r^2+7r+17.</cmath> ==Solution== Note that <math>r^2+r+6=0</math>. Thus, <math>r^3+2...)
- 23:31, 16 June 2008 (diff | hist) . . (+982) . . 2005 Alabama ARML TST Problems/Problem 11 (current)
- 23:07, 16 June 2008 (diff | hist) . . (+80) . . N File:Fourhexsquare.JPG (Used in 2005 Alabama ARML TST Problems/Problem 11. Sorry, I'm not good with asy.) (current)
- 19:58, 14 June 2008 (diff | hist) . . (+899) . . 1996 AIME Problems/Problem 10
- 18:25, 13 June 2008 (diff | hist) . . (+1) . . m 1997 AIME Problems/Problem 2
- 21:02, 12 June 2008 (diff | hist) . . (-2) . . m 1992 AIME Problems/Problem 15
- 20:56, 12 June 2008 (diff | hist) . . (+872) . . 1992 AIME Problems/Problem 15
- 19:28, 12 June 2008 (diff | hist) . . (+1) . . m 2001 AIME I Problems/Problem 14 (typo)
- 19:13, 12 June 2008 (diff | hist) . . (+790) . . 1992 AIME Problems/Problem 14
- 16:07, 12 June 2008 (diff | hist) . . (+2,098) . . 2001 AIME I Problems/Problem 14 (added solution)
- 00:55, 6 March 2008 (diff | hist) . . (+3) . . m 1991 AIME Problems/Problem 6 (typo)
- 17:15, 3 March 2008 (diff | hist) . . (+683) . . 2008 AMC 12B Problems/Problem 16
- 23:53, 1 March 2008 (diff | hist) . . (+1,013) . . N 2008 AMC 12B Problems/Problem 10 (New page: ==Problem== Bricklayer Brenda would take <math>9</math> hours to build a chimney alone, and bricklayer Brandon would take <math>10</math> hours to build it alone. When they work together t...)
- 23:43, 1 March 2008 (diff | hist) . . (+1,148) . . N 2008 AMC 12B Problems/Problem 8 (New page: ==Problem== Points <math>B</math> and <math>C</math> lie on <math>\overline{AD}</math>. The length of <math>\overline{AB}</math> is <math>4</math> times the length of <math>\overline{BD}</...)
- 23:19, 1 March 2008 (diff | hist) . . (+838) . . N 2008 AMC 12B Problems/Problem 1 (New page: ==Problem== A basketball player made <math>5</math> baskets during a game. Each basket was worth either <math>2</math> or <math>3</math> points. How many different numbers could represent ...)
- 23:03, 1 March 2008 (diff | hist) . . (-7) . . m Gravity (The gravitational force between two bodies is inversely proportional to the square of the distance between them, not directly proportional.)
- 19:38, 1 March 2008 (diff | hist) . . (0) . . m 2007 AMC 10A Problems/Problem 15 (typo)
- 23:46, 29 February 2008 (diff | hist) . . (+791) . . N 2008 AMC 12B Problems/Problem 14 (New page: ==Problem== A circle has a radius of <math>\log_{10}{(a^2)}</math> and a circumference of <math>\log_{10}{(b^4)}</math>. What is <math>\log_{a}{b}</math>? <math>\textbf{(A)}\ \frac{1}{4\p...)
- 23:38, 29 February 2008 (diff | hist) . . (+1,246) . . N 2008 AMC 12B Problems/Problem 4 (New page: ==Problem== On circle <math>O</math>, points <math>C</math> and <math>D</math> are on the same side of diameter <math>\overline{AB}</math>, <math>\angle AOC = 30^\circ</math>, and <math>\a...)
- 23:33, 29 February 2008 (diff | hist) . . (0) . . m 2008 AMC 12B Problems (→Problem 2: fixed typo)
- 23:32, 29 February 2008 (diff | hist) . . (-2) . . m 2008 AMC 12B Problems/Problem 2 (typo)
- 23:31, 29 February 2008 (diff | hist) . . (+1,047) . . N 2008 AMC 12B Problems/Problem 2 (New page: ==Problem== A <math>4\times 4</math> block of calendar dates is shown. The order of the numbers in the second row is to be reversed. Then the order of the numbers in the fourth row is to b...)
- 23:39, 27 February 2008 (diff | hist) . . (-82) . . 1992 AIME Problems/Problem 8
- 23:37, 27 February 2008 (diff | hist) . . (+327) . . 1992 AIME Problems/Problem 8
- 18:01, 25 February 2008 (diff | hist) . . (+21) . . 2002 AMC 12B Problems/Problem 23 (redirect link to median of a triangle instead of median of a set.)
- 17:58, 25 February 2008 (diff | hist) . . (+611) . . 2000 AIME II Problems/Problem 7
- 22:44, 22 February 2008 (diff | hist) . . (+540) . . 2008 AMC 12A Problems (→Problem 25)
- 22:43, 22 February 2008 (diff | hist) . . (+443) . . 2008 AMC 12A Problems (→Problem 24)
- 22:43, 22 February 2008 (diff | hist) . . (0) . . m 2008 AMC 12A Problems/Problem 24 (typo)
- 22:43, 22 February 2008 (diff | hist) . . (+530) . . 2008 AMC 12A Problems/Problem 24
- 22:34, 22 February 2008 (diff | hist) . . (+1,923) . . N 2008 AMC 12A Problems/Problem 25 (New page: ==Problem== A sequence <math>(a_1,b_1)</math>, <math>(a_2,b_2)</math>, <math>(a_3,b_3)</math>, <math>\ldots</math> of points in the coordinate plane satisfies <math>(a_{n + 1}, b_{n + 1})...)
- 22:32, 22 February 2008 (diff | hist) . . (-1,912) . . 2008 AMC 12A Problems/Problem 24 (wrong problem)
- 22:31, 22 February 2008 (diff | hist) . . (+1,912) . . N 2008 AMC 12A Problems/Problem 24 (New page: ==Problem== A sequence <math>(a_1,b_1)</math>, <math>(a_2,b_2)</math>, <math>(a_3,b_3)</math>, <math>\ldots</math> of points in the coordinate plane satisfies <math>(a_{n + 1}, b_{n + 1})...)
- 20:49, 22 February 2008 (diff | hist) . . (+907) . . 2008 AMC 12A Problems (→Problem 9)
- 18:28, 22 February 2008 (diff | hist) . . (+12) . . 2008 AMC 12A Problems/Problem 8 (wikified)
- 00:07, 21 February 2008 (diff | hist) . . (-32) . . m 2007 AMC 12B Problems/Problem 14 (spaced out answer choices)
- 00:05, 21 February 2008 (diff | hist) . . (-32) . . m 2007 AMC 12B Problems/Problem 18 (spaced out answer choices)
- 23:52, 20 February 2008 (diff | hist) . . (+4) . . m 2008 AMC 12A Problems/Problem 4 (wikified)
- 23:51, 20 February 2008 (diff | hist) . . (+4) . . m 2008 AMC 12A Problems/Problem 2 (wikified)
- 23:50, 20 February 2008 (diff | hist) . . (+1) . . m 2008 AMC 12A Problems/Problem 1
- 23:47, 20 February 2008 (diff | hist) . . (+1,531) . . N 2008 AMC 12A Problems/Problem 9 (New page: ==Problem== Older television screens have an aspect ratio of <math>4: 3</math>. That is, the ratio of the width to the height is <math>4: 3</math>. The aspect ratio of many movies is not ...)
- 00:27, 20 February 2008 (diff | hist) . . (+701) . . 2008 AMC 12A Problems (→Problem 11)
- 00:26, 20 February 2008 (diff | hist) . . (+1,570) . . N 2008 AMC 12A Problems/Problem 11 (New page: ==Problem== Three cubes are each formed from the pattern shown. They are then stacked on a table one on top of another so that the <math>13</math> visible numbers have the greatest possibl...)
- 00:13, 20 February 2008 (diff | hist) . . (+1,044) . . 2008 AMC 12A Problems (→Problem 22)
- 00:10, 20 February 2008 (diff | hist) . . (+2,440) . . N 2008 AMC 12A Problems/Problem 22 (New page: ==Problem== A round table has radius <math>4</math>. Six rectangular place mats are placed on the table. Each place mat has width <math>1</math> and length <math>x</math> as shown. They ar...)
- 23:09, 19 February 2008 (diff | hist) . . (+456) . . 2008 AMC 12A Problems/Problem 7
- 23:01, 19 February 2008 (diff | hist) . . (+63) . . 2008 AMC 12A Problems/Problem 15
- 23:01, 19 February 2008 (diff | hist) . . (+597) . . N 2008 AMC 12A Problems/Problem 15 (New page: ==Problem== Let <math>k={2008}^{2}+{2}^{2008}</math>. What is the units digit of <math>k^2+2^k</math>? <math>\textbf{(A)}\ 0 \qquad \textbf{(B)}\ 2 \qquad \textbf{(C)}\ 4 \qquad \textbf{(...)
- 22:41, 19 February 2008 (diff | hist) . . (-382) . . 2008 AMC 12A Problems (→Problem 21)
- 22:41, 19 February 2008 (diff | hist) . . (+2,427) . . 2008 AMC 12A Problems/Problem 20 (moved from #21)
- 22:38, 19 February 2008 (diff | hist) . . (-45) . . 2008 AMC 12A Problems/Problem 21
- 22:37, 19 February 2008 (diff | hist) . . (-1,790) . . 2008 AMC 12A Problems/Problem 21 (correct problem)
- 21:43, 18 February 2008 (diff | hist) . . (+1,146) . . 2008 AMC 12A Problems
- 21:36, 18 February 2008 (diff | hist) . . (+929) . . N 2008 AMC 12A Problems/Problem 12 (New page: ==Problem == A function <math>f</math> has domain <math>[0,2]</math> and range <math>[0,1]</math>. (The notation <math>[a,b]</math> denotes <math>\{x:a \le x \le b \}</math>.) What are the...)
- 21:33, 18 February 2008 (diff | hist) . . (+104) . . 2008 AMC 12A Problems/Problem 6 (correct problem)
- 21:15, 18 February 2008 (diff | hist) . . (+19) . . 2008 AMC 12A Problems/Problem 5
- 21:14, 18 February 2008 (diff | hist) . . (+768) . . N 2008 AMC 12A Problems/Problem 5 (New page: ==Problem== Suppose that <math>\frac {2x}{3} - \frac {x}{6}</math> is an integer. Which of the following statements must be true about <math>x</math>? <math>\textbf{(A)}\ \text{It is ne...)
- 19:53, 17 February 2008 (diff | hist) . . (+516) . . 2008 AMC 12A Problems (→Problem 13)
- 19:52, 17 February 2008 (diff | hist) . . (+699) . . 2008 AMC 12A Problems (→Problem 21)
- 16:18, 17 February 2008 (diff | hist) . . (+680) . . N 2008 AMC 12A Problems/Problem 4 (New page: ==Problem== Which of the following is equal to the product <center> <math>\frac {8}{4}\cdot\frac {12}{8}\cdot\frac {16}{12}\cdots\frac {4n + 4}{4n}\cdots\frac {2008}{2004}</math>? </cente...)
- 16:10, 17 February 2008 (diff | hist) . . (+315) . . 2008 AMC 12A Problems (→Problem 4)
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