> 数学 >
求极限x趋向于0 (1-cos2x)/xsinx
人气:215 ℃ 时间:2020-02-03 16:58:16
解答
lim(x→0)(1-cos2x)/xsinx
=lim(x→0) (x^2/2)/x^2
=1/2
推荐
猜你喜欢
© 2024 79432.Com All Rights Reserved.
电脑版|手机版