求极限,lim(x趋向于1)(x^2-2x+1)/(x^3-x)

问题描述:

求极限,lim(x趋向于1)(x^2-2x+1)/(x^3-x)

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