lim(x→2) (x^2-5x+6)/(x-2)
问题描述:
lim(x→2) (x^2-5x+6)/(x-2)
答
lim(x→2) (x^2-5x+6)/(x-2)
=lim(x→2) (x-2)(x-3)/(x-2)
=lim(x→2) (x-3)
=-1