Question Number 147972 by mathmax by abdo last updated on 24/Jul/21
$$\mathrm{find}\:\int_{\mathrm{0}} ^{\infty} \:\:\frac{\mathrm{arctan}\left(\mathrm{2x}+\mathrm{1}\right)}{\mathrm{x}^{\mathrm{2}} \:+\mathrm{4}}\mathrm{dx} \\ $$
find-0-arctan-2x-1-x-2-4-dx-