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lim-n-1-r-1-n-1-3-r-r-k-1-r-2k-1-




Question Number 110772 by Dwaipayan Shikari last updated on 30/Aug/20
lim_(n→∞) (1+Σ_(r=1) ^n (1/(3^r r!))Π_(k=1) ^r (2k−1))
$$\underset{{n}\rightarrow\infty} {\mathrm{lim}}\left(\mathrm{1}+\underset{{r}=\mathrm{1}} {\overset{{n}} {\sum}}\frac{\mathrm{1}}{\mathrm{3}^{{r}} {r}!}\underset{{k}=\mathrm{1}} {\overset{{r}} {\prod}}\left(\mathrm{2}{k}−\mathrm{1}\right)\right) \\ $$

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