Pythagorean triples
Source: Canada 2005
June 26, 2009
inequalitiesnumber theory unsolvednumber theory
Problem Statement
Let be a Pythagorean triple, i.e. a triplet of positive integers with a^2\plus{}b^2\equal{}c^2. Prove that \left(\frac{c}{a}\plus{}\frac{c}{b}\right)^2>8.
Prove that there are no integer and Pythagorean triple satisfying \left(\frac{c}{a}\plus{}\frac{c}{b}\right)^2\equal{}n.