> 数学 >
lim(x→1)(X^2-2X+1)/(X^2-1)的极限
人气:212 ℃ 时间:2020-10-02 00:53:54
解答
(x²-2x+1)/(x²-1)
=(x-1)²/(x+1)(x-1)
=(x-1)/(x+1)
所以极限=(1-1)/(1+1)=0
推荐
猜你喜欢
© 2026 79432.Com All Rights Reserved.
电脑版|手机版