Question Number 42636 by bohemian last updated on 30/Aug/18
$$\underset{{n}\rightarrow\infty} {\mathrm{lim}}\:\underset{{r}=\mathrm{1}} {\overset{{n}} {\sum}}\:\frac{{r}}{{n}^{\mathrm{2}} +{n}+{r}} \\ $$$$ \\ $$
Commented by bohemian last updated on 30/Aug/18
$${Is}\:{there}\:{any}\:{other}\:{way}\:{besides}\:{sandwitch}\:{theorem} \\ $$