lim(x→0) (x^2+1)/(3x^2-x-1) =
问题描述:
lim(x→0) (x^2+1)/(3x^2-x-1) =
答
把x=0直接代入得极限为-1
答
答:直接代入进去即可
lim(x→0) (x^2+1)/(3x^2-x-1)
=(0+1)/(0-0-1)
=-1