求解答!这道题怎么做?详细过程谢谢

2025-02-24 07:28:16
推荐回答(1个)
回答1:

6、lim(x->2)[f(x)-1]/(x-1) (0/0型,用洛必达法则求导)
=lim(x->2) f`(x)/1
=lim(x->2) f`(x)
=f`(2)
=3
7、x=0,x=2,x=1