摘要
凑微分法和分部积分法是求解不定积分的两种重要方法,这两种方法都适用于形如乙∫f(x)g(x)dx的积分,都有凑微分的过程,学生容易混淆。针对这种情况,本文提出了一种简单、快速、易于学生掌握的方法——"拆"、"判"、"选"、"凑"四步法,帮助学生快速找到正确的积分方法和要凑的微分因子,从而达到快速、准确解题的目的。
Improvising differential method and the subsection integral method are two important methods which apply to the integral formed as ∫f（fx）g（x）dx,but there exists the process of improvising differential,so students are easy to be confused.In view of this situation,this paper proposes a easy and fast four-step method,helping students to quickly find the right integral,so as to solve problems accurately.
出处
《科教文汇》
2012年第13期103-104,共2页
Journal of Science and Education
关键词
不定积分
凑微分
分部积分
复合函数
indefinite integral
improvising integral
the subsection integral
composite function
