(x-1)/(x^2-2x)+(x-1)/(2x-x^2)-x/(x^2-2x)
=(x-1)/(x^2-2x)-(x-1)/(x^2-2x)-x/(x^2-2x)
=-x/(x^2-2x)
=-1/(x-2)
x-1/x^2-2x+x-1/2x-x^2-x/x^2-2x怎么做?
x-1/x^2-2x+x-1/2x-x^2-x/x^2-2x怎么做?
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數(shù)學(xué)人氣：302 ℃時間：2020-02-06 14:49:23
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