已知实数x,y满足线性约束条件x+y−3≤0mx−y+1−m≥0y≥1
设实数xy满足线性约束条件x+y≤3 x-y≥1 y≥0
(2012•浙江模拟)已知实数x,y满足约束条件2x−y≤0x−3y+5≥0y≥1
已知实数x,y满足约束条件x−y≤12x+y≤4x≥1
设变量x,y满足约束条件x−y≥0x+y≤1x+2y≥1
已知x,y满足约束条件x−y+5≥0x+y≥0x≤3
(2011•绵阳二模)已知x,y满足线性约束条件:x−2y+3≥02x+y−9≤02x+6y−9≥0,若目标函数z=-x
设变量x,y满足约束条件x+y≤3x−y≥−1y≥1
已知x,y满足约束条件x−y+5≥0x+y≥0x≤3,则z=x+2y的最小值为( )
若x,y满足约束条件x−y+1≥0x+y−3≤0x+3y−3≥0
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
已知实数x,y满足线性约束条件 x≥0,y≥0,x+y≥1,则z=x^2+y^2+4x的最小值为求详细解释分析解答标准过