Question Number 34316 by prof Abdo imad last updated on 03/May/18
$${find}\:{a}\:{eajivalent}\:{of} \\ $$$${u}_{{n}} =\:\int_{\mathrm{0}} ^{\infty} \:\:\:\:\:{e}^{−\frac{{t}}{{n}}} \:\:\:{arcctant}\:{dt}\:. \\ $$
find-a-eajivalent-of-u-n-0-e-t-n-arcctant-dt-