若实数x、y,满足x≥0y≥04x+3y≤12
若实数x、y,满足x≥0y≥04x+3y≤12
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
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-4y+3≤0,3x+5y-25≤0,x≥1,则2x-y的最大值是多少
设实数x,y满足条件x≥0x≤yx+2y≤3
若实数x,y满足x−y+1≥0x+y≥0x≤0
已知实数x,y满足x−y+5≥0x≤3x+y≥0
若实数x,y满足x≥1x+y≤4x−2y+c≤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,
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x,y满足不等式组2x−y≥0x+y−3≥03x+y−8≤0
若实数x,y满足{x-y≤0,x+y≥0,y-3≤0},若不等式a(x^2+y^2)≤(x+y)^2恒成立,则实数a的最