SMO 2006 Junior Round 1 Question 8
SMO · SMO 2006 Junior Round 1
Suppose that only one of the following pairs $(x,y)$ yields the positive integer $\sqrt{x^2+y^2}$. Then which pair is it?
$x=25530,\ y=29464$
$x=37615,\ y=26855$
$x=15123,\ y=32477$
$x=28326,\ y=28614$
$x=22536,\ y=27462$