Part of the Problem Books in Mathematics book series (PBM)
The desired result\((14n + 3,21n + 4) = 1 follows from 3(14n+3) - 2(21n+4) = 1. \)
KeywordsPrime Divisor Pigeonhole Principle Perpendicular Bisector Isosceles Trapezoid Cyclic Quadrilateral
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