题目内容
求下列函数的导数
(1)y=xex
(2)y=
.
(1)y=xex
(2)y=
| x-1 |
| x+1 |
(1)y′=(xex)′=x′ex+x(ex)′=ex+xex=(1+x)ex.
(2)y′=(
)′=
=
.
(2)y′=(
| x-1 |
| x+1 |
| (x-1)′(x+1)-(x-1)(x+1)′ |
| (x+1)2 |
| 2 |
| (x+1)2 |
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