> 数学 >
求:lim(x趋向于0)(cotx-(e^2x)/sinx)答案是-2
人气:489 ℃ 时间:2020-05-12 09:45:48
解答
lim(x→0)(cotx-(e^2x)/sinx)
=lim(x→0)[(cotxsinx-(e^2x)]/sinx
=lim(x→0)[(cosx-(e^2x)]/x (0/0)
=lim(x→0)[(sinx-2e^2x
=-2
推荐
猜你喜欢
© 2025 79432.Com All Rights Reserved.
电脑版|手机版