lim(x-->64) (x^(1/2)-8)/(x^(1/3)-4)

问题描述:

lim(x-->64) (x^(1/2)-8)/(x^(1/3)-4)

L.H法则
原式=[(1/2)x^(-1/2)]/[(1/3)x^(-2/3)]=
=(1/16)/(1/48)=3