若实数x.y满足根号x+y-3+（x-2y）^2=0.则根号2xy=

已知实数x.y满足根号(x+y-8)+根号(8-x-y)=根号(3x-y-4)+根号(x-2y+7),求x,y 已知实数x,y满足下x^2+根号2y=根号3,y^2+根号2x=根号3,求x/y+y/x 实数x,y满足y=(根号2x)+(根号1-2x),求y最大值. +先化简:根号2x*根号（x/y）*{根号（y/x）/根号（1/y）}再求值.其中实数x,y满足:先化简:根号2x*根号（x/y）*{根号（y/x）/根号（1/y）}再求值.其中实数x,y满足:y=根号（x-3）+根号（6-2x）+2 若实数x,y满足根号x-2 +(3-y)^2=0,则代数式xy-x的值为 若实数x、y满足x平方+y平方-4x-2y+5=0,求根号8y-2x分之（根号x）+y 若实数X.Y满足y=根号2x-1+根号1-2x+1/3求代数式(x-y)的平方 1.已知实数x,y满足x=(根号y-3 )+(根号3-y)+2,求x的y次方的值.2.若根号x+根号-x有意义,则x1.已知实数x,y满足x=(根号y-3 )+(根号3-y)+2,求x的y次方的值.2.若根号x+根号-x有意义,则x应满足（ ）.3.已知|2008-a|+ 1.已知实数x,y满足x=(根号y-3 )+(根号3-y)+2,求x的y次方的值.2.若根号x+根号-x有意义,则x1.已知实数x,y满足x=(根号y-3 )+(根号3-y)+2,求x的y次方的值.2.若根号x+根号-x有意义,则x应满足（ ）.3.已知|2008-a|+ 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 已知实数x,y,z满足x+y+z=2根号x-1+2根号y-1+2根号z-1求X+2Y+3Z 若x.y都是实数,且满足y=根号x-4 + 根号4-x + 1 ,求3（-xy+2x）-2(3x-y)的值若x.y都是实数,且满足y=根号x-4 + 根号4-x + 1 ,求3（-xy+2x）-2(3x-y)的值 若实数X,Y满足y=根号[(4x-3)/(4x+3)] +根号[(3-4x)/(3+4x)] -1,记Tn=y+xy+x^2y+...+x^2y,求Tn 已知实数x、y满足x的平方-10x+根号（y+4）+25=0,则（x+y）的2011次方的值?若x、y为实数,且y=根号（x-1)+根号（1-x)+2,求（2/3x根号9x+根号8xy)-(根号x的立方+根号50xy）的值 已知x,y都为实数,满足y=根号x-2+根号2-x+3,xy的值? 若实数x,y满足y=[根号-（x+5)^2]+6,求|x-y|的值 实数x,y满足(x-3)^2+(y-4)^2=1,则根号x^2+y^2的最小值 已知实数x,y满足3x+4y=5,则根号x^2+y^2的最小值等于