📝 题目
6.2.15 求 $n$ 面体: ${x}_{i} \geq 0\left( {i = 1,2,\cdots ,n}\right) ,{x}_{1} + {x}_{2} + \cdots + {x}_{n} \leq a\left( {a > 0}\right)$ 的容积.
💡 答案与解析
6.2.15 $\frac{{a}^{n}}{n!}$ .
6.2.15 求 $n$ 面体: ${x}_{i} \geq 0\left( {i = 1,2,\cdots ,n}\right) ,{x}_{1} + {x}_{2} + \cdots + {x}_{n} \leq a\left( {a > 0}\right)$ 的容积.
6.2.15 $\frac{{a}^{n}}{n!}$ .