User contributions for Zheng
1 January 2013
25 November 2012
- 16:4516:45, 25 November 2012 diff hist +6 N User:Zheng Created page with "O Hai!" current
- 16:4416:44, 25 November 2012 diff hist −5 m AoPS Wiki:Site Support No edit summary
21 October 2012
- 14:0714:07, 21 October 2012 diff hist +13 m Schonemann's criterion No edit summary
22 October 2011
- 15:0015:00, 22 October 2011 diff hist +8 2002 AIME I Problems/Problem 10 →Solution
- 14:0814:08, 22 October 2011 diff hist +8 2002 AIME I Problems/Problem 7 →Solution
- 12:5412:54, 22 October 2011 diff hist −5 m Chinese Remainder Theorem →Extended version of the theorem
11 July 2011
6 March 2011
- 17:3417:34, 6 March 2011 diff hist +1 m 1983 AIME Problems/Problem 4 →Solution 2: Synthetic Solution
31 October 2009
- 22:4822:48, 31 October 2009 diff hist +32 2005 AMC 10B Problems/Problem 9 No edit summary
- 22:3922:39, 31 October 2009 diff hist 0 2005 AMC 10B Problems/Problem 9 No edit summary
- 22:3922:39, 31 October 2009 diff hist +181 N 2005 AMC 10B Problems/Problem 9 Created page with 'An odd sum requires either that the ¯rst die is even and the second is odd or that the ¯rst die is odd and the second is even. The probability is (1/3*1/3)+(2/3*2/3)=1/9+4/9=5/…'