标签:ar sp on ef bs nbsp it su ht
设$\sum\limits_{n = 1}^\infty {n{a_n}} $收敛,记${t_n} = \sum\limits_{k = 1}^\infty {k{a_{n + k}}} $,证明:数列$\left\{ {{t_n}} \right\}$收敛并求其极限
注:请问这题可不可以用Abel变换和$\varepsilon - N$定义证明啊
标签:ar sp on ef bs nbsp it su ht
原文地址:http://www.cnblogs.com/ly758241/p/4017549.html