Revision history of "2005 OIM Problems/Problem 5"

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  • (cur | prev) 16:19, 14 December 2023Tomasdiaz (talk | contribs). . (666 bytes) (+666). . (Created page with "== Problem == Let <math>O</math> be the circumcenter of an acute triangle <math>ABC</math> and <math>A_1</math> be a point on the smallest arc <math>BC</math> of the circumcir...")