Posted by haifeng on 2020-10-28 21:11:28 last update 2020-10-28 21:11:28 | Answers (1) | 收藏
判断函数 $f(x)=\lim\limits_{n\rightarrow\infty}\dfrac{n\arctan(nx)}{\sqrt{n^2+n}}$ 是否连续. 若不连续, 指出间断点及其类型.
