求函数y=2xsin(2x+5)的导数,

分类: 作业答案 • 2021-12-20 05:56:36

问题描述：

答

y'=2x'*sin(2x+5)+2x*[sin(2x+5)]'
=2sin(2x+5)+2x*cos(2x+5)*(2x+5)'
=2sin(2x+5)+4xcos(2x+5)