Question Number 219344 by SdC355 last updated on 23/Apr/25
$$\int_{\mathrm{0}} ^{\:\infty} \:\frac{\mathrm{cos}\left({z}\right)}{\:\sqrt{{z}^{\mathrm{2}} +\mathrm{1}}}\:\mathrm{d}{z}=?? \\ $$
Answered by Nicholas666 last updated on 23/Apr/25
$${K}_{\mathrm{0}} \left(\mathrm{1}\right) \\ $$