(x+y)/(根号下x+根号下y)+2xy/(x根号下y+y根号下x)=______.
(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
已知x、y满足根号下4x-5y+根号下x-y-1=0,则根号下xy-根号下x/y
x y a满足根号下x+y-8+根号下8-x-y=根号下3x-y-a+根号下x-2y+a+3
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
已知X+Y=—3,XY=2求根号下x/y+根号下y/x的值
计算:(2/3x根号下9x+6x根号下y/x)+(y根号下x/y-x的平方根号下1/x)=
(根号下y-x)平方+根号下x平方-2xy+y平方 化简
若x>0,y>0,且根号下x(根号下x+根号下y)=3根号下y(根号下x+5根号下y),求(2x+2根号下
化简:[(x×根号x+x×根号y)/(xy-y²)]-[(x+根号下xy+y)/(x×根号x-y×根号y)]
计算:根号下X(X+Y)除根号下X+Y分之XY方