Question Number 107285 by mathmax by abdo last updated on 09/Aug/20
$$\mathrm{find}\:\int_{\mathrm{0}} ^{\mathrm{1}} \:\frac{\mathrm{arctan}\left(\mathrm{2x}\right)}{\mathrm{1}+\mathrm{x}^{\mathrm{2}} }\mathrm{dx} \\ $$
find-0-1-arctan-2x-1-x-2-dx-