lim x sin(1/2x) 当X趋于无穷大时

问题描述:

lim x sin(1/2x) 当X趋于无穷大时

0.5lim x sin(1/2x)
=lim (1/2)sin(1/2x)/(1/2x)
=1/2

lim x sin(1/2x)
=lim (1/2)sin(1/2x)/(1/2x)
=1/2