问题

Questions in category: 初等数论 (Elementary Number Theory).

证明 $\frac{1}{3}+\frac{1}{5}+\cdots+\frac{1}{2n+1}$ 对任意 $n\geq 1$ 都不是整数.

Posted by haifeng on 2011-05-04 13:36:09 last update 0000-00-00 00:00:00 | Answers (0) | 收藏