来源:学生作业帮 编辑:搜搜考试网作业帮 分类:数学作业 时间:2024/07/14 07:10:45
高数解题,急,线上等.
![](http://img.wesiedu.com/upload/e/ec/eec09c0a1692cc4d665029ee43d98bf0.jpg)
![](http://img.wesiedu.com/upload/e/dd/eddc893863f46e2fbfff8f98f8fd572d.jpg)
3、
(1)连续;可导
(2)arctanx+C
(3)secxtanxdx
(4)[u'(x)*v(x)-u(x)*v'(x)]/[v(x)]^2
(5)lnx+C;arcsinx+C
(6)∫f(x)dx+∫g(x)dx
4、
(1)lim(tan2x)/x
=lim(tan2x)'/x'
=lim[(sec2x)^2*2]/1
=lim2[sec(2x)]^2
=2
(2)lim[1+(2/x)]^x
=lim{[1+(2/x)]^(x/2)}^2
=e^2