又一种积分方法——求导积分法

Another Solution of Inter-Evaluate Derivative

介绍一种新的积分方法———求导积分法 ,本文用这种方法很简便地求出含有ex 与三角函数乘积 ,ax 与三角函数乘积以及双曲函数与三角函数乘积的积分 .与传统的分部积分法相比较 ,它有更多的优越性 .

In this paper,we discuss a new solution of integer-evaluate derivative. It is convenient to get the integer about the products of and triangles function,and triangles function,hyperbola function and triangles function by this method. Compared with the traditional method,it has more superiority.