4 July 2011

• 21:4721:47, 4 July 2011 diff hist +231 AoPS Wiki talk:Problem of the Day/July 5, 2011 No edit summary
• 00:3600:36, 4 July 2011 diff hist +207 AoPS Wiki talk:Problem of the Day/July 4, 2011 No edit summary

11 February 2011

• 00:5100:51, 11 February 2011 diff hist +428 2011 AMC 10A Problems/Problem 7 →Problem 7
• 00:4600:46, 11 February 2011 diff hist +247 2011 AMC 10A Problems →Problem 7
• 00:4400:44, 11 February 2011 diff hist +552 N 2011 AMC 10A Problems/Problem 4 Created page with 'Let X and Y be the following sums of arithmetic sequences: <cmath> \begin{eqnarray*}X &=& 10+12+14+\cdots+100,\\ Y &=& 12+14+16+\cdots+102.\end[eqnarray*} </cmath> What is the…'
• 00:3400:34, 11 February 2011 diff hist +361 N 2011 AMC 10A Problems/Problem 9 Created page with 'A rectangular region is bounded by the graphs of the equations y=a, y=-b, x=-c, and x=d, where a,b,c, and d are all positive numbers. Which of the following represents the area o…'
• 00:2800:28, 11 February 2011 diff hist 0 2011 AMC 10A Problems →Problem 9

10 February 2011

• 18:5018:50, 10 February 2011 diff hist −1 2011 AMC 10A Problems →Problem 20
• 18:4918:49, 10 February 2011 diff hist −390 2011 AMC 10A Problems/Problem 20 Blanked the page
• 18:4718:47, 10 February 2011 diff hist +391 2011 AMC 10A Problems →Problem 20
• 18:4518:45, 10 February 2011 diff hist +390 N 2011 AMC 10A Problems/Problem 20 Created page with 'Two points on the circumference of a circle of radius r are selected independently and at random. Frome each point a chord lf length r is drawn in a clockwise direction. What is …'