Lagrange乘数法在证不等式中的应用

The Relation between Lagrange Multiplier Method and Inequalities

通过构造最值问题，用Ｌａｇｒａｎｇｅ乘数法，给出了几个最重要的不等式的证明。

Lagrange multiplier method is used in this paper to prove a few important inequdity,aiming at displaying the relationship between Lagrange multiplier method and inequality.