y=ln(2x^-1)求导

问题描述:

y=ln(2x^-1)求导

-1/x

y=ln(2x^-1)=-lnx/2
y'=-2/x*(1/2)=-1/x

y'=ln(2x^-1)'
=(x/2)*2*(-1)/x^2
=-1/x