初二数学题:分式的乘方1.(a-b/ab)^2 * (b-a/-a)^3 ÷ 1/a^2-b^22.先化简,再求值:[-xy/(x-y)^2]^4 * (x^2-xy/x)^3 * x^4/y^10 ÷ (x/xy-y^2)^5,其中x=-2,y=4
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![初二数学题:分式的乘方1.(a-b/ab)^2 * (b-a/-a)^3 ÷ 1/a^2-b^22.先化简,再求值:[-xy/(x-y)^2]^4 * (x^2-xy/x)^3 * x^4/y^10 ÷ (x/xy-y^2)^5,其中x=-2,y=4](/uploads/image/z/1167309-45-9.jpg?t=%E5%88%9D%E4%BA%8C%E6%95%B0%E5%AD%A6%E9%A2%98%EF%BC%9A%E5%88%86%E5%BC%8F%E7%9A%84%E4%B9%98%E6%96%B91.%EF%BC%88a-b%2Fab%29%5E2++%2A++%28b-a%2F-a%29%5E3++%C3%B7++1%2Fa%5E2-b%5E22.%E5%85%88%E5%8C%96%E7%AE%80%2C%E5%86%8D%E6%B1%82%E5%80%BC%EF%BC%9A%5B-xy%2F%28x-y%29%5E2%5D%5E4+++%2A+++%28x%5E2-xy%2Fx%29%5E3+++%2A+++x%5E4%2Fy%5E10+++%C3%B7+++%28x%2Fxy-y%5E2%29%5E5%2C%E5%85%B6%E4%B8%ADx%3D-2%2Cy%3D4)
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