f(x)=3x-(1-x) 怎样求导

f(x)=3x-(1-x) 怎样求导 f(x)=(x-1)(x-2).(x-3)求导 f(x) = xcos(3x)求导 f(x)=(1+x)/(2)求导, 求导f(x)=1/【x*(lnx)】 f(x)=e^x/(x-1)对x求导 f(x)=x(x-1)(x-2)(x-3).(x-n),则f(x)的n+1阶求导 求导数f(x)=(x+1)(2x+1)(3x+1)(4x+1) 函数f(x)=(x-x^3)/(1+2x^2+x^4)求导 f(x)=x^2x 求导 怎样对函数f(x)=(x^2+ax+b)e^(3-x) 求导, f(x)=(x-3)/(x+3)求导