Art of Problem Solving
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2010 USAMO Problems/Problem 1: Revision history

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  • curprev 04:0404:04, 7 May 2010 Aopsvd talk contribs 5,844 bytes +5,844 Created page with '==Problem== Let <math>AXYZB</math> be a convex pentagon inscribed in a semicircle of diameter <math>AB</math>. Denote by <math>P, Q, R, S</math> the feet of the perpendiculars fr…'