Art of Problem Solving
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1992 USAMO Problems/Problem 3: Revision history

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19 July 2016

17 March 2016

3 July 2013

12 April 2012

22 April 2010

5 April 2009

26 December 2008

22 February 2008

  • curprev 20:3720:37, 22 February 2008 ZzZzZzZzZzZz talk contribs 412 bytes +412 New page: ==Problem== Chords <math>AA'</math>, <math>BB'</math>, and <math>CC'</math> of a sphere meet at an interior point <math>P</math> but are not contained in the same plane. The sphere throug...