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1999 USAMO Problems/Problem 2: Revision history

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18 March 2023

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5 October 2014

4 July 2013

15 September 2012

  • curprev 13:1813:18, 15 September 2012 1=2 talk contribs 259 bytes +259 Created page with "== Problem == Let <math>ABCD</math> be a cyclic quadrilateral. Prove that <cmath> |AB - CD| + |AD - BC| \geq 2|AC - BD|. </cmath> == Solution == {{solution}} == See Also == {{..."
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