若实数x,y满足x√(1-x)=√(y-2)+√(1-x),则(3x^2+xy-y^2)/(x^2-xy+y^2)=?

已知实数x,y,满足x-√x-1=√y+3-y,则x+y最大值是? 若实数x,y满足x-y+1》=0,x+y>=0,x 若实数x,y满足x-y+1>=0,x+y>=0,x 若实数x.y满足√x-y+|y+3|=0,求y的x方的值.若实数x.y满足√x-y+|y+3|=0,求y的x方的值。 若实数x,y满足x>=1,y>=1,x+y 已知实数x,y满足y=|x-1|若x+2y 若x,y是实数,满足√1-3x+√3x-1+y=6,则xy= 若实数X,Y满足x²+y²-4x-2y+5=0求√x+y/√8y-2x 若实数x,y满足x的平方+2√3x+根号（x+y+1）+3=0,求代数式(1/x-y+1/x+y)÷y/（x²+y²）重点是代入部分啊 若实数x,y满足x^2+6x+(√x-y+1) +9=0.求代数式(（1/x-y)+(1/x+y))除以y/x^2-y^2 的值（要求对代数式先化简,再求值） 若实数xy满足x-y+1 若实数x,y是满足1 若实数x、y满足y=√-(x十5)^2+6,求|x-y|的值 已知实数x,y满足√x-2 + （y+1）²=0,则x-y=多少? 若实数x,y满足x 若实数x,y满足x 若实数x,y满足不等式x-y>=-1,x+y>=1,3x-y 若实数x,y满足不等式x-y>=-1,x+y>=1,3x-y