y=Insin(3x-1),求dx分之dy

问题描述:

y=Insin(3x-1),求dx分之dy

y=lnsin(3x-1)
  dy/dx=d【lnsin(3x-1)】/d【sin(3x-1)】×d【sin(3x-1)】/d(3x-1)×d(3x-1)/dx
  =1/sin(3x-1)×cos(3x-1)×3
  =3cot(3x-1)