若实数x、y满足x+y≤1y≤xy≥0
设实数xy满足线性约束条件x+y≤3 x-y≥1 y≥0
若实数xy满足x-y 1≥0,x y≥0,x≤0,则z=3“x 2y的最小值是多少
若实数xy满足x-y+1≥0,x+y≥0,x≤0,则z=3“x+2y的最小值是多少
若实数xy满足不等式组x-2y≥0,x+y-3≥0,x-y-3≤0,则2x-y的最小值为?
若实数xy满足约束条件x≥0 y≥0 x+y≤1 则Z=2x+y最大值为
若实数x,y满足不等式组x-y+1≥0x+y-1≤0y≥0
若实数x、y,满足x≥0y≥04x+3y≤12
若实数x,y满足x≥1x+y≤4x−2y+c≤0
若实数x,y满足x−y+1≥0x+y≥0x≤0
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,
设实数xy满足y≥x+1 2y-4x-1≤0 2y+x-11≤0,
若实数x,y满足条件0≤x≤10≤y≤22y−x≥1