设不等式组x+y−2≥0x−3y+6≥0x−y≤0
设不等式组x+y−2≥0x−3y+6≥0x−y≤0
不等式组x−y+6≥0x+y≥0x≤3
设不等式组x+y-2>=0,x-3y+6>=0,x-y
不等式组x−y≥−2x+y≤3x≥0y≥0
如果x,y满足不等式组x≤3x+y≥0x−y+5≥0
(2012•商丘二模)设实数x,y满足不等式组y+x≤1y−x≤1y≥0
(2014•闸北区三模)设实数x,y满足不等式组y+x≤1y−x≤1y≥0
若实数x,y满足不等式组2x−y≥0x+y−3≥03x+y−8≤0
设变量x,y满足约束条件x−y≥0x+y≤1x+2y≥1
画出不等式组x+y-6≥0 x-y≥0 y≤3 x
设实数x,y满足不等式组y+x≤1y-x≤1y≥0
不等式组x≥0x−y−1≥03x−2y−6≤0