> 数学 >
lim x趋近0 cot(x)
求xcotx
人气:226 ℃ 时间:2020-04-25 11:52:58
解答
lim x趋近0 xcot(x)
=lim x趋近0 xcos(x)/sinx
=lim x趋近0 cos(x)
=1
推荐
猜你喜欢
© 2024 79432.Com All Rights Reserved.
电脑版|手机版