Lim(x→1) (x2-4x-5 )/(x2-1)求极值

来源:学生作业帮助网 编辑:作业帮 时间:2024/05/05 15:34:13

Lim(x→1) (x2-4x-5 )/(x2-1)求极值
Lim(x→1) (x2-4x-5 )/(x2-1)求极值

Lim(x→1) (x2-4x-5 )/(x2-1)求极值
Lim(x→1) (x2-4x-5 )/(x2-1)
=lim (x+1)(x-5)/[(x+1)(x-1)]
=lim(x-5)/(x-1)
=∞