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prove-that-S-n-1-1-sinh-2-n-x-2-e-2x-1-m-n-




Question Number 152761 by mnjuly1970 last updated on 01/Sep/21
   prove that:      S := Σ_(n=1) ^∞ ((( 1)/(sinh (2^( n) .x)))) =^? (( 2)/(e^( 2x) −1))   m.n...
$$ \\ $$$$\:{prove}\:{that}: \\ $$$$ \\ $$$$\:\:\mathrm{S}\::=\:\underset{{n}=\mathrm{1}} {\overset{\infty} {\sum}}\left(\frac{\:\mathrm{1}}{{sinh}\:\left(\mathrm{2}^{\:{n}} .{x}\right)}\right)\:\overset{?} {=}\frac{\:\mathrm{2}}{{e}^{\:\mathrm{2}{x}} −\mathrm{1}} \\ $$$$\:{m}.{n}… \\ $$

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