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+1>=0,x+y>=0,x 实数x,y满足{x-y+1>=0;y+1>=0;x+y+1 若实数x,y满足不等式组x>=0 ,y>=0,x+2y 若实数x,y满足x^2-xy-y^2 =0,则x/y=? 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 己知实数x,y满足{ (x-y+6) (x+y-6)>=0,1 已知实数x,y满足{x=>0,y 已知实数x,y满足{x=>0,y 若实数x,y满足x|x|+y|y|=1,则点(x,y)到直线x+y=0的距离的取值范围是 若实数X,Y满足X²+Y²+4X-2Y +1=0,则X²-6X+Y²-2Y的最大值是多少 若实数x,y满足y 若实数x,y满足不等式y 已知实数x,y满足x-ay-1>=0,2x+y>=0,x 若实数x,y满足x²+y²-2x+4y=0,求x-y的最大值 若实数x y满足（x+y)²+（x+y)-2=0则x+y值为 若实数x,y满足不等式x-y>=-1,x+y>=1,3x-y