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1988 USAMO Problems/Problem 4: Revision history

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  • curprev 14:5814:58, 15 May 2012 1=2 talk contribs 387 bytes +387 Created page with "==Problem== <math>\Delta ABC</math> is a triangle with incenter <math>I</math>. Show that the circumcenters of <math>\Delta IAB</math>, <math>\Delta IBC</math>, and <math>\Delta ..."
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