> 数学 >
化简:(2x/x-1)-(x/x+1)÷(x/x²-1)
人气:138 ℃ 时间:2019-11-19 13:43:00
解答
2x/(x-1)-[x/(x+1)]*[(x+1)(x-1)/x]
=2x/(x-1)-(x-1)=[2x-(x-1)^2]/(x-1)=(x^-4x+1)/(1-x)应该是最简了
推荐
猜你喜欢
© 2024 79432.Com All Rights Reserved.
电脑版|手机版