.求极限,求救:x趋向于1,lomx^2-2x+1/x^3-x

问题描述:

.求极限,求救:x趋向于1,lomx^2-2x+1/x^3-x

limx^2-2x+1/x^3-x=lim(x-1)^2/(x-1)(x+1)x=lim(x-1)/(x+1)x=0