若x,y是实数,满足√1-3x+√3x-1+y=6,则xy=
若x,y是实数,满足√1-3x+√3x-1+y=6,则xy=
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1/x-1/y=5,则分式3x-2xy-3y/x+xy-y的值等于?
若实数xy满足(x+y+2)(x+y-1)=0,则x+y的值是
已知实数xy满足x/y=x-y,且y>1,则实数x的取值范围是
实数x,y满足x的三次方-y的三次方-3xy=1则x-y=
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xy+1=4x+y,若x,y为正实数,则xy的取值范围是?
已知实数xy满足x2-x+y=3则x+y的最大值是
实数XY 满足2x+4y=1,则x平方+y平方最小值是
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
若实数xy满足x-y 1≥0,x y≥0,x≤0,则z=3“x 2y的最小值是多少