问题

Questions in category: 级数 (Infinite Series).

求级数的和

Posted by haifeng on 2023-06-02 08:45:45 last update 2023-06-02 08:45:45 | Answers (1) | 收藏

(1)

$\sum_{n = 1}^{\infty} \frac{8}{n (n + 2)}$