Question Number 109215 by mathmax by abdo last updated on 22/Aug/20
$$\mathrm{calculate}\:\int_{\mathrm{0}} ^{\mathrm{1}} \:\frac{\mathrm{ln}\left(\mathrm{1}+\sqrt{\mathrm{1}+\mathrm{x}^{\mathrm{2}} }\right)}{\sqrt{\mathrm{1}+\mathrm{x}^{\mathrm{2}} }}\mathrm{dx} \\ $$
Commented by peter frank last updated on 22/Aug/20
$$\mathrm{very}\:\mathrm{tough}\:\mathrm{to}\:\mathrm{me} \\ $$