已知实数x,y满足x-ay-1>=0,2x+y>=0,x
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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
已知实数x,y满足2x+3y≤14,2x+y≤9,x≥0,y≥0,S=3x+ay,若S取得最大值时的最优解有无穷多个,则
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x, y满足x²+y²-2x+6y+10=0,求y∧-x.
已知实数x y满足x×x+y×y-xy+2x-y+1=0 试求x y的值
已知实数x,y 满足x2+y2+2x=0则x+y得最小值
若实数x,y满足{2x-y>=0,
高等数学微积分已知a为常实数,y为x的函数,求下面微分方程的解,y''(x)+2ay'(x)+y(x)=2,满足y(0)