已知实数x,y满足 2x+y-2>=0,x-2y+k>=0,x-1

已知实数x,y满足 2x+y-2>=0,x-2y+k>=0,x-1 已知实数x,y满足x²+y²-xy+2x-y+1=0 求x y 已知实数x,y满足不等式组：2x-y=0,x+2y 已知实数x, y满足x²+y²-2x+6y+10=0,求y∧-x. 若实数x,y满足{2x-y>=0, 已知实数x y满足x×x+y×y-xy+2x-y+1=0 试求x y的值 已知正实数x，y满足x+2y=4，则1x+1y 已知实数x,y 满足x2+y2+2x=0则x+y得最小值 当x、y满足x>=0,y>=x,2x+y+k 已知x,y满足约束条件：x-y+1>=0,x+y-2>=0,x 1已知实数x y满足x^2+y^2+2x-2√3y=0 求 已知实数,y满足x^2+y^2+4x+3=0,求y-2/x-1的值域