Posted by haifeng on 2019-11-05 00:07:30 last update 2023-10-11 19:08:07 | Answers (1) | 收藏
设 $a,b,c$ 都是正数, 求
\[\lim_{n\rightarrow+\infty}(a^n+b^n+c^n)^{\frac{1}{n}}.\]
例如:
\[\lim_{n\rightarrow+\infty}\sqrt[n]{1+2^n+3^n}.\]
