不等式的证明

Proof of Inequality

本文给出不等式证明的三种方法,一是利用拉格朗日中值定理,二是利用函数的增减性,三是利用函数的凸凹性。

This paper introduced three methods. One is lagrahge theorem , the second is increasing and decreasing of functions, the third is convexity of functions .