# User contributions

- 23:30, 20 June 2012 (diff | hist) . . (+64) . . Riemann Hypothesis
- 22:26, 20 June 2012 (diff | hist) . . (+115) . . Riemann Hypothesis
- 23:52, 26 February 2012 (diff | hist) . . (-5) . . 2012 AMC 12B Problems (→Problem 24)
- 23:50, 26 February 2012 (diff | hist) . . (+214) . . 2012 AMC 12B Problems/Problem 19
- 21:02, 23 February 2012 (diff | hist) . . (+106) . . N 2012 AMC 12B Problems/Problem 6 (Created page with "== Problem== In order to estimate the value of x-y where x and y are real numbers with x <math>\g</math> y")
- 19:09, 23 February 2012
(diff | hist) . .
**(+705)** . . 2012 AMC 12B Problems/Problem 14 - 19:06, 23 February 2012 (diff | hist) . . (+117) . . 2012 AMC 12B Problems/Problem 14
- 19:02, 23 February 2012 (diff | hist) . . (+488) . . N 2012 AMC 12B Problems/Problem 14 (Created page with "== Problem== Bernardo and Silvia play the following game. An integer between 0 and 999 inclusive is selected and given to Bernardo. Whenever Bernardo receives a number, he double...")
- 18:57, 23 February 2012 (diff | hist) . . (-33) . . 2012 AMC 12B Problems/Problem 2
- 18:52, 23 February 2012 (diff | hist) . . (+201) . . N 2012 AMC 12B Problems/Problem 2 (Created page with "== Problem== A circle of radius 5 is inscribed in a rectangle as shown. The ratio of the length of the rectangle to it's width is 2:1. What is the area of the rectangle size(10 ...")
- 18:47, 23 February 2012 (diff | hist) . . (0) . . 2012 AMC 12B Problems/Problem 1
- 18:47, 23 February 2012 (diff | hist) . . (+10) . . 2012 AMC 12B Problems/Problem 1
- 18:46, 23 February 2012 (diff | hist) . . (-7) . . 2012 AMC 12B Problems/Problem 1
- 18:46, 23 February 2012 (diff | hist) . . (-35) . . 2012 AMC 12B Problems/Problem 1
- 18:44, 23 February 2012 (diff | hist) . . (+74) . . 2012 AMC 12B Problems/Problem 1
- 18:35, 23 February 2012 (diff | hist) . . (+39) . . 2012 AMC 12B Problems/Problem 1
- 18:34, 23 February 2012 (diff | hist) . . (+169) . . 2012 AMC 12B Problems/Problem 1
- 18:32, 23 February 2012 (diff | hist) . . (+221) . . N 2012 AMC 12B Problems/Problem 1 (Created page with "Each third-grade classroom at Pearl Creek Elementary has 18 students and 2 pet rabbits. How many more students than rabbits are there in all 4 of the third-grade classrooms? (A)...")
- 18:29, 23 February 2012 (diff | hist) . . (+24) . . 2012 AMC 12B Answer Key
- 18:28, 23 February 2012 (diff | hist) . . (+115) . . N 2012 AMC 12B Answer Key (Created page with "1.C 2.E 3.D 4.B 5.A 6.A 7.E 8.A 9.B 10.B 11.C 12.E 13.D 14.A 15.C 16.B 17.C 18.B 19.A 20.D 21.A 22.E 23.B 24.D 25.B")
- 18:25, 23 February 2012
(diff | hist) . .
**(+1,486)** . . N 2012 AMC 12B (Created page with "'''2012 AMC 12B''' problems and solutions. The test was held on February 22, 2012. The first link contains the full set of test problems. The rest contain each individual proble...") - 18:22, 23 February 2012 (diff | hist) . . (+19) . . AMC 12 Problems and Solutions
- 16:44, 20 July 2011 (diff | hist) . . (+57) . . 2011 IMO Problems
- 16:43, 20 July 2011 (diff | hist) . . (+1) . . 2011 IMO Problems
- 16:42, 20 July 2011 (diff | hist) . . (0) . . 2011 IMO Problems
- 16:42, 20 July 2011
(diff | hist) . .
**(+2,385)** . . 2011 IMO Problems - 16:36, 20 July 2011 (diff | hist) . . (+114) . . N 2011 IMO (Created page with "The 52nd IMO occurred in 2011 in Amsterdam, Netherlands. 105 countries participated, and teams were of 6 students.")
- 16:31, 20 July 2011 (diff | hist) . . (+295) . . N 2011 IMO Problems/Problem 1 (Created page with "Given any set A = {a1, a2, a3, a4} of four distinct positive integers, we denote the sum a1+a2+a3+a4 bysA. Let nA denote the number of pairs (i,j) with 1 ≤ i< j ≤ 4 for which...")
- 16:29, 20 July 2011
(diff | hist) . .
**(+628)** . . N 2011 IMO Problems/Problem 2 (Created page with "Let S be a finite set of at least two points in the plane. Assume that no three points of S are collinear. A windmill is a process that starts with a line l going through a singl...") - 16:28, 20 July 2011 (diff | hist) . . (+472) . . N 2011 IMO Problems/Problem 4 (Created page with "Let n > 0 be an integer. We are given a balance and n weights of weight 2^0, 2^1,...2^n-1. We are to place each of the n weights on the balance, one after another, in such a way ...")
- 16:25, 20 July 2011 (diff | hist) . . (+276) . . N 2011 IMO Problems/Problem 5 (Created page with "Let f be a function from the set of integers to the set of positive integers. Suppose that, for any two integers m and n, the difference f (m) − f (n) is divisible by f (m − ...")
- 16:24, 20 July 2011 (diff | hist) . . (+293) . . N 2011 IMO Problems/Problem 6 (Created page with "Let ABC be an acute triangle with circumcircle Γ. Let l be a tangent line to Γ, and let la, lb and lc be the lines obtained by reflecting l in the lines BC, CA and AB, respecti...")
- 16:22, 20 July 2011 (diff | hist) . . (-186) . . 2011 IMO Problems (Blanked the page)
- 16:20, 20 July 2011 (diff | hist) . . (+186) . . N 2011 IMO Problems/Problem 3 (Created page with "Let f : R → R be a real-valued function defined on the set of real numbers that satisfies f(x + y) ≤ yf(x) + f(f(x)) for all real numbers x and y. Prove that f(x) = 0 for all...")
- 16:19, 20 July 2011 (diff | hist) . . (+186) . . N 2011 IMO Problems (added text)