7 February 2013

• 12:4312:43, 7 February 2013 diff hist 0 m 2013 AMC 12A Problems →Problem 19
• 12:4212:42, 7 February 2013 diff hist +439 N 2013 AMC 12A Problems/Problem 19 Created page with "Let CX=x, BX=y. Let the circle intersect AC at D and the diameter including AD intersect the circle again at E. Use power of a point on point C to the circle centered at A. So C..."

27 August 2012

• 18:1018:10, 27 August 2012 diff hist +567 The Ross Program →Course structure
• 18:0318:03, 27 August 2012 diff hist +53 The Ross Program →Selection

20 February 2011

• 13:2613:26, 20 February 2011 diff hist +7 m 2011 AMC 12A Problems/Problem 20 →See also