MathDB
inequality algebra

Source: kYRGYZSTAN REGIONAL

March 7, 2017
inequalities

Problem Statement

If ∣x∣<1 {|x|}<{1} and ∣y∣<1{|y|}<1 then prove that ∣x−y1−xy∣<1|\frac{x-y}{1-xy}|<1
Back to ProblemsView on AoPS