y=cos^2(sin2x)的导数,_数学解答

y=cos^2(sin2x)的导数,

人气：430 ℃　时间：2020-03-30 00:36:34

解答

y' =2cos(sin2x) ×[cos(sin2x)]'
=2cos(sin2x)×[-sin(sin2x)]× (sin2x)'
=-sin(2sin2x)×2cos2x
=-2cos2x sin(2sin2x)