
答案1
答案2
从中找到我的解决方案邮政, 它应该是:
$$\left.\begin{array}{r}0\leq y\leq 1\\1\leq x\leq 2 \end{array} \right\} \Rightarrow 0\leq y\leq 1\leq x\leq 2$$
这正是我所需要的:
从中找到我的解决方案邮政, 它应该是:
$$\left.\begin{array}{r}0\leq y\leq 1\\1\leq x\leq 2 \end{array} \right\} \Rightarrow 0\leq y\leq 1\leq x\leq 2$$
这正是我所需要的: