Question Number 219440 by Nicholas666 last updated on 25/Apr/25
$$ \\ $$$$\:\:\:{I}=\int\mathrm{tan}\left(\frac{\mathrm{cos}\left({n}\right)}{{n}\left(\mathrm{1}−\mathrm{cos}\left({n}\right)\:+\:\mathrm{cos}^{\mathrm{2}} \left({n}\right)\right)}\right)\:{dn} \\ $$$$ \\ $$