问题

Questions in category: 极限 (Limit).

设 $x_{n} = \sum_{k = 1}^{n} \frac{1}{\sqrt{k}} - 2 \sqrt{n}$ , 证明 $lim_{n \to \infty} x_{n}$ 存在.

Posted by haifeng on 2025-01-18 10:34:34 last update 2025-01-18 10:34:34 | Answers (1) | 收藏

设 $x_{n} = \sum_{k = 1}^{n} \frac{1}{\sqrt{k}} - 2 \sqrt{n}$ , 证明 $lim_{n \to \infty} x_{n}$ 存在.