计算题……帮忙算算~……………………急用计算:1.(a^2-4)/(a^2+4a+4)*2a/(a^2-4a+4)2.(x^2y-x^3/x^2+2xy+y^2)/(x/x-y)*(x+y/x^2-2xy+y^2)3.(x/(x-y)-x^2/(x^2-2xy+y^2))/(x/(x+y)-x^2/(x^2-y^2))4.(x^2-x-2/(x^2-4x+4)-x/x^2-2x)*(x-4/x)
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![计算题……帮忙算算~……………………急用计算:1.(a^2-4)/(a^2+4a+4)*2a/(a^2-4a+4)2.(x^2y-x^3/x^2+2xy+y^2)/(x/x-y)*(x+y/x^2-2xy+y^2)3.(x/(x-y)-x^2/(x^2-2xy+y^2))/(x/(x+y)-x^2/(x^2-y^2))4.(x^2-x-2/(x^2-4x+4)-x/x^2-2x)*(x-4/x)](/uploads/image/z/2979890-26-0.jpg?t=%E8%AE%A1%E7%AE%97%E9%A2%98%E2%80%A6%E2%80%A6%E5%B8%AE%E5%BF%99%E7%AE%97%E7%AE%97%7E%E2%80%A6%E2%80%A6%E2%80%A6%E2%80%A6%E2%80%A6%E2%80%A6%E2%80%A6%E2%80%A6%E6%80%A5%E7%94%A8%E8%AE%A1%E7%AE%97%3A1.%28a%5E2-4%29%2F%28a%5E2%2B4a%2B4%29%2A2a%2F%28a%5E2-4a%2B4%292.%28x%5E2y-x%5E3%2Fx%5E2%2B2xy%2By%5E2%29%2F%28x%2Fx-y%29%2A%28x%2By%2Fx%5E2-2xy%2By%5E2%293.%28x%2F%28x-y%29-x%5E2%2F%28x%5E2-2xy%2By%5E2%29%29%2F%28x%2F%28x%2By%29-x%5E2%2F%28x%5E2-y%5E2%29%294.%EF%BC%88x%5E2-x-2%2F%28x%5E2-4x%2B4%29-x%2Fx%5E2-2x%EF%BC%89%2A%28x-4%2Fx%29)
计算题……帮忙算算~……………………急用计算:1.(a^2-4)/(a^2+4a+4)*2a/(a^2-4a+4)2.(x^2y-x^3/x^2+2xy+y^2)/(x/x-y)*(x+y/x^2-2xy+y^2)3.(x/(x-y)-x^2/(x^2-2xy+y^2))/(x/(x+y)-x^2/(x^2-y^2))4.(x^2-x-2/(x^2-4x+4)-x/x^2-2x)*(x-4/x)
计算题……帮忙算算~……………………急用
计算:1.(a^2-4)/(a^2+4a+4)*2a/(a^2-4a+4)
2.(x^2y-x^3/x^2+2xy+y^2)/(x/x-y)*(x+y/x^2-2xy+y^2)
3.(x/(x-y)-x^2/(x^2-2xy+y^2))/(x/(x+y)-x^2/(x^2-y^2))
4.(x^2-x-2/(x^2-4x+4)-x/x^2-2x)*(x-4/x)
计算题……帮忙算算~……………………急用计算:1.(a^2-4)/(a^2+4a+4)*2a/(a^2-4a+4)2.(x^2y-x^3/x^2+2xy+y^2)/(x/x-y)*(x+y/x^2-2xy+y^2)3.(x/(x-y)-x^2/(x^2-2xy+y^2))/(x/(x+y)-x^2/(x^2-y^2))4.(x^2-x-2/(x^2-4x+4)-x/x^2-2x)*(x-4/x)
1.2a/(a^2-4)
分太低了...
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计算题……帮忙算算~……………………急用计算:1.(a^2-4)/(a^2+4a+4)*2a/(a^2-4a+4)2.(x^2y-x^3/x^2+2xy+y^2)/(x/x-y)*(x+y/x^2-2xy+y^2)3.(x/(x-y)-x^2/(x^2-2xy+y^2))/(x/(x+y)-x^2/(x^2-y^2))4.(x^2-x-2/(x^2-4x+4)-x/x^2-2x)*(x-4/x)
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