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1982 USAMO Problems/Problem 5: Revision history

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11 July 2018

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6 March 2013

  • curprev 10:3810:38, 6 March 2013 1=2 talk contribs 583 bytes +583 Created page with "== Problem == <math>A,B</math>, and <math>C</math> are three interior points of a sphere <math>S</math> such that <math>AB</math> and <math>AC</math> are perpendicular to the dia..."
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