Difference between revisions of "Mock USAMO by probability1.01 dropped problems"
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Revision as of 16:37, 2 September 2006
Problem 1
Problem 2
In triangle , , let the incircle touch , , and at , , and respectively. Let be a point on on the opposite side of from . If and meet at , and and meet at , prove that concur. Reason: The whole incircle business seemed rather artificial. Besides, it wasn’t that difficult.