已知实数x,y满足条件2x+y≥3x+y−3≤0x≥0y≥0
已知实数x,y满足条件x≥0,y≥x,3x+4y≤12,则(x+2y+3)/(x +1)的最大值是
已知实数x,y满足条件2x+y≥3x+y−3≤0x≥0y≥0
已知实数x,y满足条件{2x-y+1≥0,2x+y≥0,x≤1,求z=x+3y的最小值.
设实数x,y满足条件x≥0x≤yx+2y≤3
已知实数x,y满足x−y+5≥0x≤3x+y≥0
已知实数x,y满足2x+y−2≥0x−2y+4≥03x−y−3≤0则x
已知实数x,y满足2x+y−2≥0x−2y+4≥03x−y−3≤0
已知实数x.y满足条件1.x-2y+4≥0 2.2x+y-2≥0 3.3x-y-3≤0.求z=x+2y的最大值
已知实数x.y满足条件1.x-2y+4≥0 2.2x+y-2≥0 3.3x-y-3≤0.则z=x+2y的最大值
若实数x、y,满足x≥0y≥04x+3y≤12
若实数x,y满足条件0≤x≤10≤y≤22y−x≥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