# User contributions

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- 18:53, 22 November 2013 (diff | hist) . . (+485) . . 2013 AMC 12A Problems/Problem 14
- 18:11, 22 November 2013
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**(+554)** . . 2013 AMC 12A Problems/Problem 6 - 10:34, 16 February 2010
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**(+846)** . . 2010 AMC 12A Problems/Problem 3 - 10:24, 16 February 2010
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**(+729)** . . 2010 AMC 12A Problems/Problem 9 (→Solution) - 10:09, 16 February 2010 (diff | hist) . . (+463) . . 2010 AMC 12A Problems/Problem 12
- 10:00, 16 February 2010
(diff | hist) . .
**(+1,049)** . . 2010 AMC 12A Problems/Problem 13 (→Solution) - 09:26, 16 February 2010 (diff | hist) . . (+134) . . 2010 AMC 12A Problems/Problem 15 (→Solution)
- 09:19, 16 February 2010
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**(+1,479)** . . 2010 AMC 12A Problems/Problem 18 (→Brute Force Solution) - 08:46, 16 February 2010
(diff | hist) . .
**(+1,182)** . . 2010 AMC 12A Problems/Problem 20 (→Solution) - 08:02, 16 February 2010
(diff | hist) . .
**(+2,654)** . . 2010 AMC 12A Problems/Problem 22 (→Solution) - 21:05, 26 September 2009
(diff | hist) . .
**(+1,162)** . . 1976 IMO Problems/Problem 1 (→Solution) (current) - 12:23, 6 June 2009 (diff | hist) . . (+38) . . m 2006 AMC 10A Problems/Problem 16 (→Solution)
- 21:43, 18 April 2009
(diff | hist) . .
**(+2,251)** . . 2009 AIME II Problems/Problem 13 - 10:58, 15 April 2009 (diff | hist) . . (-1) . . m 2009 AIME II Problems/Problem 14 (→Solution 2)
- 10:53, 15 April 2009
(diff | hist) . .
**(+3,137)** . . 1988 AJHSME Problems/Problem 24 (fixed an incorrect answer) - 15:07, 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 ...) - 08:36, 14 April 2009
(diff | hist) . .
**(+2,543)** . . 2009 AIME II Problems - 12:00, 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>\...) - 13:49, 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 ...) - 13:19, 9 April 2009 (diff | hist) . . (+339) . . 2009 AIME II Problems
- 13:14, 9 April 2009 (diff | hist) . . (+189) . . Talk:2009 AIME II Problems/Problem 4 (current)
- 13:12, 9 April 2009 (diff | hist) . . (+91) . . 2009 AIME II Problems/Problem 4
- 12:31, 9 April 2009 (diff | hist) . . (-6) . . m 2009 AIME II Problems/Problem 9 (→Solution 1)
- 12:30, 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...)
- 13:08, 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...) - 11:25, 8 April 2009 (diff | hist) . . (+279) . . 2009 AIME II Problems (→Problem 11)
- 08:04, 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...) - 18:35, 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...) - 18:05, 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...) - 14:33, 7 April 2009
(diff | hist) . .
**(+2,448)** . . 2009 AIME II Problems (problems 6-10) - 07:40, 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...) - 13:39, 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...) - 13:16, 6 April 2009
(diff | hist) . .
**(+1,346)** . . 2009 AIME II Problems (tasks 1 to 4) - 13:10, 6 April 2009
(diff | hist) . .
**(+1,131)** . . N 2009 AIME II Problems (template for editing in problems) - 19:42, 31 March 2009
(diff | hist) . .
**(+1,058)** . . 2008 AIME I Problems/Problem 4 - 16:14, 29 March 2009
(diff | hist) . .
**(+1,706)** . . 2008 AMC 10B Problems/Problem 24 - 06:55, 29 March 2009 (diff | hist) . . (-11) . . m 2008 AMC 10B Problems/Problem 23
- 06:41, 29 March 2009 (diff | hist) . . (+153) . . m 2008 AMC 10B Problems/Problem 16 (→Solution)
- 14:21, 22 March 2009
(diff | hist) . .
**(+1,685)** . . 2009 AIME I Problems/Problem 8 - 04:53, 21 March 2009
(diff | hist) . .
**(+855)** . . 2009 AIME I Problems/Problem 1 - 17:55, 15 March 2009
(diff | hist) . .
**(+2,144)** . . 2006 AMC 10B Problems - 17:44, 15 March 2009
(diff | hist) . .
**(+817)** . . 2006 AMC 10B Problems/Problem 23 - 14:24, 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...) - 13:59, 10 March 2009
(diff | hist) . .
**(+1,699)** . . 2009 AMC 10B Problems/Problem 22 (→Solution) - 11:09, 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...) - 10:49, 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...) - 19:46, 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...) - 13:50, 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 ...) - 13:41, 8 March 2009
(diff | hist) . .
**(+566)** . . 2009 AMC 10B Problems/Problem 21 (→Solution) - 20:58, 7 March 2009
(diff | hist) . .
**(+2,003)** . . 2009 AMC 10B Problems/Problem 20

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