User contributions
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- 17:53, 22 November 2013 (diff | hist) . . (+485) . . 2013 AMC 12A Problems/Problem 14
- 17:11, 22 November 2013 (diff | hist) . . (+554) . . 2013 AMC 12A Problems/Problem 6
- 09:34, 16 February 2010 (diff | hist) . . (+846) . . 2010 AMC 12A Problems/Problem 3
- 09:24, 16 February 2010 (diff | hist) . . (+729) . . 2010 AMC 12A Problems/Problem 9 (→Solution)
- 09:09, 16 February 2010 (diff | hist) . . (+463) . . 2010 AMC 12A Problems/Problem 12
- 09:00, 16 February 2010 (diff | hist) . . (+1,049) . . 2010 AMC 12A Problems/Problem 13 (→Solution)
- 08:26, 16 February 2010 (diff | hist) . . (+134) . . 2010 AMC 12A Problems/Problem 15 (→Solution)
- 08:19, 16 February 2010 (diff | hist) . . (+1,479) . . 2010 AMC 12A Problems/Problem 18 (→Brute Force Solution)
- 07:46, 16 February 2010 (diff | hist) . . (+1,182) . . 2010 AMC 12A Problems/Problem 20 (→Solution)
- 07:02, 16 February 2010 (diff | hist) . . (+2,654) . . 2010 AMC 12A Problems/Problem 22 (→Solution)
- 20:05, 26 September 2009 (diff | hist) . . (+1,162) . . 1976 IMO Problems/Problem 1 (→Solution) (current)
- 11:23, 6 June 2009 (diff | hist) . . (+38) . . m 2006 AMC 10A Problems/Problem 16 (→Solution)
- 20:43, 18 April 2009 (diff | hist) . . (+2,251) . . 2009 AIME II Problems/Problem 13
- 09:58, 15 April 2009 (diff | hist) . . (-1) . . m 2009 AIME II Problems/Problem 14 (→Solution 2)
- 09:53, 15 April 2009 (diff | hist) . . (+3,137) . . 1988 AJHSME Problems/Problem 24 (fixed an incorrect answer)
- 14:07, 14 April 2009 (diff | hist) . . (+4,220) . . N 2009 AIME II Problems/Problem 14 (New page: == Problem == The sequence <math>(a_n)</math> satisfies <math>a_0=0</math> and <math>a_{n + 1} = \frac85a_n + \frac65\sqrt {4^n - a_n^2}</math> for <math>n\geq 0</math>. Find the greatest ...)
- 07:36, 14 April 2009 (diff | hist) . . (+2,543) . . 2009 AIME II Problems
- 11:00, 13 April 2009 (diff | hist) . . (+2,716) . . N 2009 AIME II Problems/Problem 7 (New page: == Problem == Define <math>n!!</math> to be <math>n(n-2)(n-4)\cdots 3\cdot 1</math> for <math>n</math> odd and <math>n(n-2)(n-4)\cdots 4\cdot 2</math> for <math>n</math> even. When <math>\...)
- 12:49, 9 April 2009 (diff | hist) . . (+2,543) . . N 2009 AIME II Problems/Problem 12 (New page: == Problem == From the set of integers <math>\{1,2,3,\dots,2009\}</math>, choose <math>k</math> pairs <math>\{a_i,b_i\}</math> with <math>a_i<b_i</math> so that no two pairs have a common ...)
- 12:19, 9 April 2009 (diff | hist) . . (+339) . . 2009 AIME II Problems
- 12:14, 9 April 2009 (diff | hist) . . (+189) . . Talk:2009 AIME II Problems/Problem 4
- 12:12, 9 April 2009 (diff | hist) . . (+91) . . 2009 AIME II Problems/Problem 4
- 11:31, 9 April 2009 (diff | hist) . . (-6) . . m 2009 AIME II Problems/Problem 9 (→Solution 1)
- 11:30, 9 April 2009 (diff | hist) . . (+84) . . N Talk:2009 AIME II Problems/Problem 4 (New page: Does the "another solution" differ from the first one? To me, they seem identical...)
- 12:08, 8 April 2009 (diff | hist) . . (+1,949) . . N 2009 AIME II Problems/Problem 11 (New page: == Problem == For certain pairs <math>(m,n)</math> of positive integers with <math>m\geq n</math> there are exactly <math>50</math> distinct positive integers <math>k</math> such that <mat...)
- 10:25, 8 April 2009 (diff | hist) . . (+279) . . 2009 AIME II Problems (→Problem 11)
- 07:04, 8 April 2009 (diff | hist) . . (+1,634) . . N 2009 AIME II Problems/Problem 6 (New page: == Problem == Let <math>m</math> be the number of five-element subsets that can be chosen from the set of the first <math>14</math> natural numbers so that at least two of the five numbers...)
- 17:35, 7 April 2009 (diff | hist) . . (+3,452) . . N 2009 AIME II Problems/Problem 9 (New page: == Problem == Let <math>m</math> be the number of solutions in positive integers to the equation <math>4x+3y+2z=2009</math>, and let <math>n</math> be the number of solutions in positive i...)
- 17:05, 7 April 2009 (diff | hist) . . (+3,335) . . N 2009 AIME II Problems/Problem 8 (New page: == Problem == Dave rolls a fair six-sided die until a six appears for the first time. Independently, Linda rolls a fair six-sided die until a six appears for the first time. Let <math>m</m...)
- 13:33, 7 April 2009 (diff | hist) . . (+2,448) . . 2009 AIME II Problems (problems 6-10)
- 06:40, 7 April 2009 (diff | hist) . . (+1,242) . . N 2009 AIME II Problems/Problem 2 (New page: == Problem == Suppose that <math>a</math>, <math>b</math>, and <math>c</math> are positive real numbers such that <math>a^{\log_3 7} = 27</math>, <math>b^{\log_7 11} = 49</math>, and <math...)
- 12:39, 6 April 2009 (diff | hist) . . (+2,725) . . N 2009 AIME II Problems/Problem 4 (New page: == Problem == A group of children held a grape-eating contest. When the contest was over, the winner had eaten <math>n</math> grapes, and the child in <math>k</math>-th place had eaten <m...)
- 12:16, 6 April 2009 (diff | hist) . . (+1,346) . . 2009 AIME II Problems (tasks 1 to 4)
- 12:10, 6 April 2009 (diff | hist) . . (+1,131) . . N 2009 AIME II Problems (template for editing in problems)
- 18:42, 31 March 2009 (diff | hist) . . (+1,058) . . 2008 AIME I Problems/Problem 4
- 15:14, 29 March 2009 (diff | hist) . . (+1,706) . . 2008 AMC 10B Problems/Problem 24
- 05:55, 29 March 2009 (diff | hist) . . (-11) . . m 2008 AMC 10B Problems/Problem 23
- 05:41, 29 March 2009 (diff | hist) . . (+153) . . m 2008 AMC 10B Problems/Problem 16 (→Solution)
- 13:21, 22 March 2009 (diff | hist) . . (+1,685) . . 2009 AIME I Problems/Problem 8
- 03:53, 21 March 2009 (diff | hist) . . (+855) . . 2009 AIME I Problems/Problem 1
- 16:55, 15 March 2009 (diff | hist) . . (+2,144) . . 2006 AMC 10B Problems
- 16:44, 15 March 2009 (diff | hist) . . (+817) . . 2006 AMC 10B Problems/Problem 23
- 13:24, 10 March 2009 (diff | hist) . . (+2,348) . . N 2009 AMC 10B Problems/Problem 24 (New page: == Problem == The keystone arch is an ancient architectural feature. It is composed of congruent isosceles trapezoids fitted together along the non-parallel sides, as shown. The bottom si...)
- 12:59, 10 March 2009 (diff | hist) . . (+1,699) . . 2009 AMC 10B Problems/Problem 22 (→Solution)
- 10:09, 10 March 2009 (diff | hist) . . (+2,777) . . N 2009 AMC 10B Problems/Problem 22 (New page: == Problem == A cubical cake with edge length <math>2</math> inches is iced on the sides and the top. It is cut vertically into three pieces as shown in this top view, where <math>M</math...)
- 09:49, 9 March 2009 (diff | hist) . . (+2,881) . . N 2009 AMC 10B Problems/Problem 16 (New page: == Problem == Points <math>A</math> and <math>C</math> lie on a circle centered at <math>O</math>, each of <math>\overline{BA}</math> and <math>\overline{BC}</math> are tangent to the cir...)
- 18:46, 8 March 2009 (diff | hist) . . (+1,595) . . N 2009 AMC 10B Problems/Problem 18 (New page: == Problem == Rectangle <math>ABCD</math> has <math>AB=8</math> and <math>BC=6</math>. Point <math>M</math> is the midpoint of diagonal <math>\overline{AC}</math>, and <math>E</math> is o...)
- 12:50, 8 March 2009 (diff | hist) . . (+1,320) . . N 2009 AMC 10B Problems/Problem 12 (New page: == Problem == Distinct points <math>A</math>, <math>B</math>, <math>C</math>, and <math>D</math> lie on a line, with <math>AB=BC=CD=1</math>. Points <math>E</math> and <math>F</math> lie ...)
- 12:41, 8 March 2009 (diff | hist) . . (+566) . . 2009 AMC 10B Problems/Problem 21 (→Solution)
- 19:58, 7 March 2009 (diff | hist) . . (+2,003) . . 2009 AMC 10B Problems/Problem 20
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