Friday, September 17, 2010

45th Polish Mathematical Olympiad Problems 1994

45th Polish Mathematical Olympiad Problems 1994A1.  Find all triples (x,y,z) of positive rationals such that x + y + z, 1/x + 1/y + 1/z and xyz are all integers. A2.  L, L' are parallel lines. C is a circle that does not

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