将(√x-y)/(x-y)÷√(xy/x³-x²y)(x>y>0)化简
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将(√x-y)/(x-y)÷√(xy/x³-x²y)(x>y>0)化简
将(√x-y)/(x-y)÷√(xy/x³-x²y)(x>y>0)化简
将(√x-y)/(x-y)÷√(xy/x³-x²y)(x>y>0)化简
原式=1/√(x-y)*√x(x-y)/√xy
=1/√(x-y)*√(x-y)/√y
=1/√y
=√y/y
将(√x-y)/(x-y)÷√(xy/x³-x²y)(x>y>0)化简
(√xy -xy分之x+√xy)除以√xy -y分之x-y(x>0,y.0)
(xy-x²)÷(x²-2xy+y²/xy)×(x-y/x²)
x-y/x²÷x²-2xy+y²/xy*(xy-x²)
(x-y/x+y)^2÷(y-x/x^2+2xy+y^2)^2
(xy-x²)²÷(x-y)²/xy·x-y/x² 计算
(xy-x的平方)÷xy分之x-y
(1/x-y-1/x+y)÷2y/x²-2xy+y²,其中x=√2+1,y=1-√2
(x-y+4xy/x-y)(x+y-4xy/x-y)
计算:{x√x+x√y / xy-y²}-{x+√xy+y / x√x-y√y}
分式计算题:(x√x+x√y)/(xy-y2)-(+√xy+y)/(x√x-y√y)求解
化简 x√x+x√y x+√xy+y -------------- — ---------------- xy-(y的平方) x√x-y√y走过路过不要错过,x√x+x√y x+√xy+y_________ _ ------------xy-(y的平方) x√x-y√y
x根号x+x根号y/xy-y^2)-(x+根号xy+y/x根号x-y根号)y
(x²-4y²)÷(2x+y)/xy×1/x(2y-x)(2x+y)/xy 1/x(2y-x) 都是一项
若x>o,y>o,且根号x(根号x+根号y)=3根号y(根号x+5根号y)求x+根号xy分之2x-根号xy-5y式子是√x(√x+√y)=3√y(√x+5√y),求x+√xy分之2x-√xy-5y
(x√x+x√y)÷(xy-y^2)--(x+√xy+y)÷(x√x-y√y)
因式分解 xy(x-y)- x(x-y)² ,
[x(x²y²-xy)-y(x²-x³y)]÷3x²y