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)=?
若正实数x.y满足x+y=xy,则x+2y的最小值
若实数x,y满足1/x-1/y=5,则分式3x-2xy-3y/x+xy-y的值等于?
若实数X,Y满足X√1-X=√Y-2+√X-1,求(3X^2+XY-Y^2)/(X^2-XY+Y^2)的值
已知实数x,y满足x²+y²-xy+2x-y+1=0 求x y
若实数x.y满足x^2+y^2+xy=1,则x+y的最大值为
若实数xy满足(x+y+2)(x+y-1)=0,则x+y的值是
已知实数x,y满足y=√2x-1+√1-2x +2,求xy的平方根
若实数x,y满足x根号(1-x)=根号(y-2)+根号(x-1),求3x²+xy-y²/x²
若两个正实数x,y满足x^2+2xy-3y^2=0,求x^2+xy+y^2/x^2-xy+y^2
已知实数x,y满足5x²+2y²+1=6xy+4x-2y,则x²-xy+2000y
实数XY 满足2x+4y=1,则x平方+y平方最小值是
实数x,y满足x^2-2xy+y^2-√3x-√3y+12=0,则xy的最小值是多少?