设xy满足约束条件x>=0 y>=0 4x+3y=0
设xy满足约束条件x>=0 y>=0 4x+3y=0
设x,y满足约束条件x>=0 y>=x 4x+3y
设变量X,Y满足约束条件{X-Y+3>=0,X+Y>=0,-2
设变量xy满足约束条件x-y≥0,x+y-2≥0,3x-y-6≤0则目标函数z=2x-y
设x,y满足约束条件x>=0 x>=y 2x-y
设xy满足约束条件x≥0,x≥y,2x-y≤1,求z=3x+2y的最大值
xy满足约束条件x-ay-1>=0,2x+y>=0,x
xy满足约束条件x-ay-1>=0,2x+y>=0,x-1/2
设xy满足约束条件 x+y>=1 x-2y>=-2 3x-2y
设实数xy满足线性约束条件x+y≤3 x-y≥1 y≥0
设x y 满足约束条件 x≤0 x≤y 2x-y+1≥0 则z=3x+2y的最大值
已知xy满足约束条件y=2 2X+y