1、z=e^2cost+3t^2 z的导数=-2sinte^2cost+6t
2、z=tan(3t+2/t^2+t^(3/2)) z的导数=1/[1+(3t+2/t^2+t^(3/2)）^2] 乘以(3t+2/t^2+t^(3/2)^2）的导数
=（3-4/t^3+3/2乘以根号t）/[1+(3t+2/t^2+t^(3/2)）^2]
这种算式太难打了自己改成手写体吧