根号下(x^2-2xy+y^2/xy)化简 (x>y>0)
根号下(x^2-2xy+y^2/xy)化简 x>y>0
根号下(x^2-2xy+y^2/xy)化简 (x>y>0)
已知正实数x y满足x-根号xy-2y=0求 x+3根号xy+2y/2x-2根号下xy-y
若X>0,y>0,且x-根号下xy-2y=0,求(2x-根号下xy)/y+2根号下xy的值
若x>0,y>0,且x-根号下xy-2y=0,求【2x-根号下xy】÷【y+2根号下xy】的值
(x+y)/(根号下x+根号下y)+2xy/(x根号下y+y根号下x)=______.
(x*根号下x + x*根号下y ) / (xy-y^2) — (x + 根号下xy + y) /(x*根号下x — y
(根号下y-x)平方+根号下x平方-2xy+y平方 化简
x根号x+x根号y/xy-y^2)-(x+根号xy+y/x根号x-y根号)y
[x-y]根号下 1/y-x +根号下 x的平方-2xy+y的平方 化简
已知x>0,y>0,x+2y+2xy=8,求x+2y的最小值.x+2y+2xy=8≥2倍根号下2xy+2xy 令根号下x
已知xy<0,化简 x根号下-y^3/x^2