浅谈几类特殊初等函数的积分法  

The Integral Way of Several Special Elementary Functions

作　　者：王恩亮[1] 宋振新[1] 郁国瑞[1] 

机构地区：[1]河北能源职业技术学院,河北唐山063000

出　　处：《河北能源职业技术学院学报》2014年第1期89-91,共3页Journal of Hebei Energy College of Vocation and Technology

摘　　要：以有理函数的积分为基础,初步探讨将三角函数不仅能通过万能代换而且用其他形式,也可转化为有理函数的积分;对于积分较为困难的无理函数,其关键在于如何去掉根号,解决了几种特殊情况。Based on the integral of the rational function, this paper initially probes into turning the trigono- metric function into the integral of the rational function by the all - purpose replacement and other forms. It is difficult for the irrational function to be integral, and the key is how to remove the radical sign.

关 键 词：有理函数 三角函数 无理函数 不定积分方法 

分 类 号：O172-4[理学—数学]