不等式:设实数x,y满足3
不等式:设实数x,y满足3
设实数x,y满足3
设Z=x+y,其中实数x,y满足不等式x+2y>=0,x-y
设实数x,y满足不等式组y+x≤1y-x≤1y≥0
设实数x,y满足0
设实数x、y满足不等式组x+2y-5>02x+y-7>0x≥0,y≥0,若x、y为整数,则3x+4y的最小值是( )
设实数x,y满足不等式组{x+2y-5>0 2x+y-7>0 x>=0 y>=0} ,且x,y为整数,则3x+4y的最小
设实数x,y满足不等式组3y-x≥0,y+2x+a≥0,y-2x-2≤0,若x²+y²的最小值为5,
设实数x,y满足不等式组x y−11≤0,3x−y 3≤0,x≥0,则z=2x y的最大值为
设实数x,y满足条件x≥0x≤yx+2y≤3
(2012•商丘二模)设实数x,y满足不等式组y+x≤1y−x≤1y≥0
(2014•闸北区三模)设实数x,y满足不等式组y+x≤1y−x≤1y≥0