若根号(2X-3Y+38)与(3X-2Y+12)2互为相反数,那么X+Y/(根号X+根号Y)+2XY/(X*根号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
化简:((根号x-根号y)^3+2x根号x+y根号y)/(x根号x+y根号y)+(3根号xy-3y)/(x-y)
若根号3x-2y-1与根号2x+y-3互为相反数求(xy)2010
若根号下5-x-y与3x-2y+1的绝对值互为相反数,则根号下xy
已知xy为实数,且满足(x+y-根号3)²与根号下(2x-y)互为相反数,求8x²+4y²
【(x-y)^3(x^1/2+y^1/2)^-3+3(x根号y-y根号x)】/(x根号x+y根号y)+(2xy根号xy-
已知|x-y+3| 根号2x+y互为相反数求x+y的值
若x+y-3的绝对值与根号下2x+3y-5互为相反数
已知根号(3Y-1)与根号(1-2X)互为相反数,求X./Y
①{(x+y)/(根号x+根号y)}+{2xy/根号xy(根号x+根号y)}
已知x平方+y平方-2y+1=0,求(根号x+根号y+3)/((根号xy+y)(3根号x+根号y))
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