∫ from x=a to b (f(x)dx)=∫ from x=a to b (f(a+b-x)dx)的应用初探

Exploration of the Application of∫ from x=a to b (f(x)dx)=∫ from x=a to b (f(a+b-x)dx)

本文从两个方面对等式∫abf(x)dx =∫abf(a +b-x)dx的应用做了一些初步探讨 ,这两方面分别为 :运用这个等式证明一些积分等式 。

This article makes some preliminary explorations about the application of the equation from two aspects. First,make use of the formula to prove some integral calculus equation. Second,use the formula to prove some trigonometric function integral calculus whose solutions are difficult to get.