作业帮已知实数xy满足 4x+y-9>=0 x-y-1
来源：学生作业帮助网 编辑：作业帮 时间：2024/11/24 20:41:00
x){}KlꆊgضYBR@BR&H8@Fӎƕg
已知实数xy满足 4x+y-9>=0 x-y-1
已知实数xy满足 4x+y-9>=0 x-y-1<=0 y<=3 则x-3y的最大值
已知实数xy满足 4x+y-9>=0 x-y-1
画图!