求导,y=(x²+1)Inx怎么做,
来源:学生作业帮助网 编辑:作业帮 时间:2024/07/17 12:29:07
![求导,y=(x²+1)Inx怎么做,](/uploads/image/z/2624070-30-0.jpg?t=%E6%B1%82%E5%AF%BC%2Cy%3D%28x%26%23178%3B%2B1%29Inx%E6%80%8E%E4%B9%88%E5%81%9A%2C)
x){=:jʆچyx8K&HUv6Ěbb0]am4ҜX~u6_T(3@ԯ@6
?ٌOvxy*đ`4
t UMS ~qAbs o
求导,y=(x²+1)Inx怎么做,
求导,y=(x²+1)Inx怎么做,
求导,y=(x²+1)Inx怎么做,
解
y‘=[(x²+1)lnx]
=(x²+1)'lnx+(x²+1)(lnx)'
=2xlnx+(x²+1)/x
=2xlnx+x+1/x
这是乘法求导
[f(x)g(x)]'=f'(x)g(x)+f(x)g'(x)