MathDB
AZE JBMO TST

Source: AZE JBMO TST

May 2, 2015
three variable inequalityInequality

Problem Statement

a,b,cR+a,b,c\in\mathbb{R^+} and a2+b2+c2=48a^2+b^2+c^2=48. Prove that a22b3+16+b22c3+16+c22a3+16242a^2\sqrt{2b^3+16}+b^2\sqrt{2c^3+16}+c^2\sqrt{2a^3+16}\le24^2