設Z=e^u-2v,而u=sinx,v=x^3,求dz/dx,

設Z=e^u-2v,而u=sinx,v=x^3,求dz/dx,

du/dx=cosx dv/dx=3x^2
dz/dx=e^u*du/dx-2dv/dx
=e^u*cosx-6x^2