一个几何不等式的证明

A Proof on a Geometry Inequality

本文提出了一个不同于教学参考书上的证明,旨在开阔学生的思维空间,亦为教师优化教学效果提供一点参考资料。

This article proposes a proof that is different from identification on the teaching reference book. Its aim is at widening students＇ thinking space, and offering some reference materials in order the teacher optimizes the teaching result.