已知实数xy满足约束条件x-ay-1>=0,2x+y>=0,x0,重点提供一下思路,跪谢!

已知实数xy满足约束条件x-ay-1>=0,2x+y>=0,x0,重点提供一下思路,跪谢! xy满足约束条件x-ay-1>=0,2x+y>=0,x-1/2 xy满足约束条件x-ay-1>=0,2x+y>=0,x 已知xy满足约束条件y=2 2X+y 已知x,y满足约束条件：x-y+1>=0,x+y-2>=0,x 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 已知实数XY满足约束条件x-ax-1≥0,2x+y≥0,x≤1,（a∈R）目标函数z=x+2y只有当x=1,y=0时取得 已知变量x,y满足约束条件x+2y-3=0,y-1 若实数x,y满足约束条件x-y-2=0,2y-3 若实数XY满足约束条件X大于等于0,Y大于等于0,X+Y小于等于1,则Z=3X+Y的最大值为 已知实数xy满足x²﹢y²-xy+2x-y+1=0求xy 已知实数x、y满足xy>0,且8/xy+1/x+1/y=1,