MathDB
Simple inequality

Source: JBMO 2011 Shortlist A3

May 15, 2016
inequalitiesalgebraJBMO ShortlistHigh school olympiad

Problem Statement

A3\boxed{\text{A3}}If a,ba,b be positive real numbers, show that:a2+ab+b23+aba+b \displaystyle{\sqrt{\dfrac{a^2+ab+b^2}{3}}+\sqrt{ab}\leq a+b}