Question Number 168828 by infinityaction last updated on 18/Apr/22
$$ \\ $$$$\:\:\:\:\int_{\mathrm{0}} ^{\pi/\mathrm{2}} \mathrm{cos}^{−\mathrm{1}} \left(\frac{\mathrm{1}}{\mathrm{1}+\mathrm{2cos}\:{x}}\right){dx} \\ $$
Commented by infinityaction last updated on 18/Apr/22
$${please}\:{solve}\:{this}\:{problem} \\ $$