Question Number 33300 by abdo imad last updated on 14/Apr/18
$${find}\:{the}\:{value}\:{of}\:\:\:\sum_{{n}=\mathrm{0}} ^{\infty} \:\:\:\frac{\left(−\mathrm{1}\right)^{{n}} }{\mathrm{4}{n}\:+\mathrm{3}}\:. \\ $$
find-the-value-of-n-0-1-n-4n-3-