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find-n-1-1-1-4n-2-




Question Number 29838 by abdo imad last updated on 12/Feb/18
find Π_(n=1) ^∞ (1−(1/(4n^2 ))).
$${find}\:\prod_{{n}=\mathrm{1}} ^{\infty} \left(\mathrm{1}−\frac{\mathrm{1}}{\mathrm{4}{n}^{\mathrm{2}} }\right). \\ $$

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