求极限lim(x→0)x²/1-cosx
来源:学生作业帮助网 编辑:作业帮 时间:2024/05/15 15:28:34
求极限lim(x→0)x²/1-cosx
求极限lim(x→0)x²/1-cosx
求极限lim(x→0)x²/1-cosx
lim(x→0)x²/1-cosx
=lim(x→0)x²/[1-(1-2sin²(x/2))】
=lim(x→0)x²/[2sin²(x/2)】
=lim(x→0)x²/(x²/2)
=2
求极限lim(x→0)x²/1-cosx
求极限lim(x→0)x²/1-cosx
求极限lim(x→0)x²/1-cosx
lim(x→0)x²/1-cosx
=lim(x→0)x²/[1-(1-2sin²(x/2))】
=lim(x→0)x²/[2sin²(x/2)】
=lim(x→0)x²/(x²/2)
=2