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Question Number 155918 by Oberon last updated on 05/Oct/21
Can you evaluate this sum?  Σ_(n=1) ^∞ 2^(−n) tan (2^(−n) )
$$\mathrm{Can}\:\mathrm{you}\:\mathrm{evaluate}\:\mathrm{this}\:\mathrm{sum}? \\ $$$$\underset{\mathrm{n}=\mathrm{1}} {\overset{\infty} {\sum}}\mathrm{2}^{−\mathrm{n}} \mathrm{tan}\:\left(\mathrm{2}^{−\mathrm{n}} \right) \\ $$
Commented by horpy4 last updated on 05/Oct/21
converges
$${converges} \\ $$

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