Posted by haifeng on 2017-04-08 18:47:51 last update 2017-04-08 20:28:54 | Answers (0) | 收藏
求极限
\[\lim_{n\rightarrow\infty}n^2(x^{\frac{1}{n}}-x^{\frac{1}{n+1}}),\]
这里 $x > 0$.
