已知x>0y>o且x-5根号xy-6y求(x-2根号xy+y)/x+根号xy-2y
已知x>0y>o且x-5根号xy-6y求(x-2根号xy+y)/x+根号xy-2y
已知x>0,y>0,且x+6y=5根号xy,求(2x+根号xy-y)分之(x+根号xy+2y)的值
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
已知x>0,y>0,x+根号xy-6y=0,求4x+5根号xy-6y分之x+2根号xy
已知x,y为正数,且根号x(根号x+根号y)=3根号y(根号x+5根号y),求:(2x+根号xy+3y)/(x+根号xy
已知 X大于0,Y大于0,且X-根号XY-2Y=0,求2X-根号XY除以Y+2根号XY的值
设x>0,y>0,且根号x(根号x+根号y)=3根号y(根号x+5根号y),求代数式2x+根号xy+2y\x-根号xy-
x根号x+x根号y/xy-y^2)-(x+根号xy+y/x根号x-y根号)y
已知x>0,y>0,且x-根号xy-6y=0,求x+2根号xy+3y/4x-5根号xy-6y的值
已知x大于0 y大于0 且x+6y=5根号xy 求x+根号xy+2y分之2x+根号xy-y的值
已知x大于0 y大于0 且x+6y=5根号xy 求x+根号xy+2y分之2x+根号(xy-y)的值
已知x大于0,y大于0,且x减5根号xy减6y等于零,求x加根号xy减2y分之x减2根号xy加y的值