若正数x y满足2x+y-2xy-3=0 则2x+y最大值

若正数x y满足2x+y-2xy-3=0 则2x+y最大值 若正数x,y满足2x+y-3=0,则x+2y/xy的最小值为 已知正数x,y满足2x+8y-xy=0,x+y的最小值 若正数x,y满足x^2+3xy-1=0,则x+y的最小值是 正数x,y满足x-y=2xy,求x-y/x+y的值. 若正数x y满足4x^2+9y^2+3xy=30 则xy最大值 若正数x,y满足x平方-y平方=2xy,求x-y除以x+y的值 若正数x,y满足xy^2=4 ,求x+2y的最小值. 正数x,y满足(1+x)(1+y)=2,求xy+1/xy最小值 正数x,y满足2x+y+6=xy,则xy的最小值是 若正数xy满足4/x+1/y=2,则3x+4y的最小值 已知正数x,y满足x+8y-xy=0,则x+2y的最小值是 已知正数xy满足2x+y-2=0,则(x+2y)/xy的最小值为 正数x,y满足x^2-y^2=2xy,求（x-y）/（x+y）的值 正数x,y满足x^2-y^2=2xy,求(x-y)/(x+y)的值急. 正数x、y满足x平方减去y平方=2xy,求(x-y)/(x+y)的值 正数x,y满足x²-y²=2xy,求x-y/x+y的值 正数X,Y满足 X²-Y²=2XY,求X-Y/X+Y的值. 有过程..