已知x,y满足y−2≤0x+3≥0x−y−1≤0
已知实数x,y满足2x+y−2≥0x−2y+4≥03x−y−3≤0则x
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( )
已知x,y满足约束条件x−y+5≥0x+y≥0x≤3
已知实数x,y满足x−y+5≥0x≤3x+y≥0
设变量x,y满足约束条件x−y≥0x+y≤1x+2y≥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
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2x+y≥3x+y−3≤0x≥0y≥0
已知x、y满足x+3y−3≤0x≥0y≥0
若实数x,y满足x≥1x+y≤4x−2y+c≤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2x−3y−1+|x−2y+2|=0