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求y=(x+1)/(x-1)的导函数
人气:425 ℃ 时间:2020-08-29 12:47:59
解答
y'=(x+1)'(x-1)-(x+1)(x-1)'/(x-1)^2
=x-1-(x+1)/(x-1)^2
=-2/(x-1)^2
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