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2001 IMO Shortlist Problems/G7: Revision history

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20 August 2008

  • curprev 17:5017:50, 20 August 2008 Minsoens talk contribs 726 bytes +726 New page: == Problem == Let <math>O</math> be an interior point of acute triangle <math>ABC</math>. Let <math>A_1</math> lie on <math>BC</math> with <math>OA_1</math> perpendicular to <math>BC</math...
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