Posted by haifeng on 2022-03-21 23:15:11 last update 2022-03-21 23:15:35 | Answers (1) | 收藏
利用定积分求极限
\[I=\lim_{n\rightarrow\infty}\sum_{k=1}^{n}\frac{n}{n^2+k^2+k}.\]
