lim(x→0)in(1+2x)/arcsin3x的极限?
问题描述:
lim(x→0)in(1+2x)/arcsin3x的极限?
答
2/3
答
lim(x→0)in(1+2x)/arcsin3x
=lim(x->0)2x/3x
=2/3
x->0
ln(1+2x)~2x
arcsin3x~3x