MathDB
2013 Team #1: ab-Algebra Bash

Source:

February 18, 2013

Problem Statement

Let aa and bb be real numbers such that aba2+b2=14 \frac {ab}{a^2 + b^2} = \frac {1}{4} . Find all possible values of a2b2a2+b2 \frac {|a^2-b^2|}{a^2+b^2} .