化简{-xy/(x-y)²}四次方×(y²-xy/x)³×x四次方/y十次方÷(x/xy-y²)五次方,其中y=-1
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![化简{-xy/(x-y)²}四次方×(y²-xy/x)³×x四次方/y十次方÷(x/xy-y²)五次方,其中y=-1](/uploads/image/z/988519-31-9.jpg?t=%E5%8C%96%E7%AE%80%EF%BD%9B-xy%2F%EF%BC%88x-y%EF%BC%89%26%23178%3B%EF%BD%9D%E5%9B%9B%E6%AC%A1%E6%96%B9%C3%97%EF%BC%88y%26%23178%3B-xy%2Fx%EF%BC%89%26%23179%3B%C3%97x%E5%9B%9B%E6%AC%A1%E6%96%B9%2Fy%E5%8D%81%E6%AC%A1%E6%96%B9%C3%B7%EF%BC%88x%2Fxy-y%26%23178%3B%EF%BC%89%E4%BA%94%E6%AC%A1%E6%96%B9%2C%E5%85%B6%E4%B8%ADy%3D-1)
化简{-xy/(x-y)²}四次方×(y²-xy/x)³×x四次方/y十次方÷(x/xy-y²)五次方,其中y=-1
化简{-xy/(x-y)²}四次方×(y²-xy/x)³×x四次方/y十次方÷(x/xy-y²)
五次方,其中y=-1
化简{-xy/(x-y)²}四次方×(y²-xy/x)³×x四次方/y十次方÷(x/xy-y²)五次方,其中y=-1
[-XY/(X-Y)^2]^4*[(Y^2-XY)/X]^3*(X^4/Y^10)÷[X/(XY-Y^2)]^5
=-[X^4Y^4*Y^3(X-Y)^3*X^4*Y^5(X-Y)^5]/[(X-Y)^8*X^3*Y^10*X^5]
=-[X^8*Y^12*(X-Y)^8]/[(X-Y)^8*X^8*Y^10]
=-Y^2
Y=-1
=-1