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calculate-n-0-1-n-2-1-




Question Number 77759 by abdomathmax last updated on 09/Jan/20
calculate Σ_(n=0) ^∞  (1/(n^2  +1))
$${calculate}\:\sum_{{n}=\mathrm{0}} ^{\infty} \:\frac{\mathrm{1}}{{n}^{\mathrm{2}} \:+\mathrm{1}} \\ $$

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