limx趋近于0sin3x/2x

分类: 作业答案 • 2023-01-12 17:39:48

问题描述：

limx趋近于0sin3x/2x

答

lim(x→0)sin3x/2x
=lim(x→0)(sin3x/3x)*(3/2)
=lim(3x→0)(sin3x/3x)*(3/2)
lim(x→0)sinx/x=1
=3/2