若x,y满足约束条件y≤xx+y≤−1y≥−1
若变量x,y满足约束条件x≥−1y≥xx+y≤1
设x,y满足约束条件x+y≤1y≤xy≥−2
设变量x,y满足约束条件x−y≥0x+y≤1x+2y≥1
设变量x,y满足约束条件x+y≤3x−y≥−1y≥1
若变量x,y满足约束条件x+y≤2x≥1y≥0
已知实数x,y满足约束条件x−y≤12x+y≤4x≥1
若x,y满足约束条件x−y+1≥0x+y−3≤0x+3y−3≥0
.若x、y满足约束条件 x - y +1≥0
设变量x,y满足约束条件2x−y≤2x−y≥−1x+y≥1
已知变量x,y满足约束条件x+2y≥22x+y≤44x−y≥−1
(2012•浙江模拟)已知实数x,y满足约束条件2x−y≤0x−3y+5≥0y≥1
若实数x,y满足约束条件x-y≥0,x+y≥0,2x+y≤1,则y/(x+1)的最大值是多少,