Lim sin3x ------------=多少?x-0 x+tan7x
问题描述:
Lim sin3x ------------=多少?x-0 x+tan7x
Lim sin3x
----------------
x-0 x+tan7x
答
Lim 3x
----------------
x-0 x+tan7x
Lim 3
= ----------------
x-0 1+tan7x/x
=3/8