Question Number 37889 by abdo mathsup 649 cc last updated on 19/Jun/18
$${calculate}\:\:\int_{\mathrm{0}} ^{\infty} \:\:\:\:\frac{{arctan}\left(\mathrm{2}{x}\right)}{{x}}\:{e}^{−{tx}} \:{dx}\:{with}\:{t}\:\geqslant\mathrm{0} \\ $$
calculate-0-arctan-2x-x-e-tx-dx-with-t-0-