来自范本隽的问题
y=(sin2x)^2的导数怎么求?
y=(sin2x)^2的导数怎么求?
3回答
2020-05-21 01:45
y=(sin2x)^2的导数怎么求?
y=(sin2x)^2的导数怎么求?
y=(sin2x)^2
y'
=2sin2x(sin2x)'
=2sin2xcos2x(2x)'
=4sin2xcos2x
=2sin4x
=2sin2x(sin2x)'怎么来的呀
复合函数求导法则[f(g(x))]'=f'(g(x))g'(x)没有学过么?