设变量x,y满足约束条件x+2y−5≤0x−y−2≤0x≥0
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+2y−5≤0x−y−2≤0x≥0
设变量x,y满足约束条件x≥0x−y≥02x−y−2≤0
若变量x,y满足约束条件x+y≤2x≥1y≥0
设变量x,y满足约束条件 {x-y≥0,x+y≤1,x+2y≥0},则函数Z=2x+y 的最大值?
设变量X,Y满足约束条件{X-Y+3>=0,X+Y>=0,-2
设变量x,y满足约束条件x+y≤3x−y≥−1y≥1
设变量x,y满足约束条件2x−y≤2x−y≥−1x+y≥1
设变量x,y满足约束条件2x+y−2≥0 x−2y+4≥0 x−1≤0,则目标函数z=3x-2y的最
设变量xy满足约束条件x-y≥0,x+y-2≥0,3x-y-6≤0则目标函数z=2x-y
设x,y满足约束条件x−y+2≥05x−y−10≤0x≥0y≥0
设x,y满足约束条件x+y≤1y≤xy≥−2