圣才电子书十万种考研考证电子书、题库视频学习平台www.100xuexi.com(1)?1x2?1dx?ln?x?x2?1??C
(2)?1x2x2?1dx?x2?1x?C(3)??2x
1
x
2?1??x?1?2dx?arctanx?x?1?C(4)?secxdx?lntanx?secx?C(5)?
xcosxdx?xsinx?cosx?C(6)?exsinxdx?1x2e?sinx?cosx??C解:(1)ddx???ln?x?x2?1??C???1???1?x?
??1?x?x2?1?x2?1?x2?1x(2)d?x?x2?11dx?
x2?1??C???x2?1??x??
x2?x2x2?1(3)d?1?
112xdx??arctanx?x?1?C???x2?1??x?1?2??x2?1??x?1?2(4)ddx?lntanx?secx?C??1
tanx?secx??sec2x?secxtanx??secx(5)d
dx?xsinx?cosx?C??sinx?xcosx?sinx?xcosx
(6d?1dx??2ex?sinx?cosx??C????1x1xx
2e?sinx?cosx??2e?cosx?sinx??esinx2.求下列不定积分:(1)?dxx2;(2)?xxdx;6/159)
同济大学数学系《高等数学》第7版笔记和课后习题含考研真题详解(4-6章)【圣才出品】
圣才电子书十万种考研考证电子书、题库视频学习平台www.100xuexi.com(1)?1x2?1dx?ln?x?x2?1??C(2)?1x2x2?1dx?x2?1x?C(3)??2x1x2?1??x?1?2dx?arctanx?x?1?C(4)?secxdx?lntanx?secx?C(5)?xcosxdx?xsinx?
推荐度:
![](/skin/haowen/images/icon_star.png)
![](/skin/haowen/images/icon_star.png)
![](/skin/haowen/images/icon_star.png)
![](/skin/haowen/images/icon_star.png)
![](/skin/haowen/images/icon_star.png)
点击下载文档文档为doc格式