Question Number 111756 by mathmax by abdo last updated on 04/Sep/20
$$\mathrm{find}\:\mathrm{I}_{\mathrm{n}} =\int_{\mathrm{0}} ^{\frac{\pi}{\mathrm{4}}} \:\frac{\mathrm{du}}{\mathrm{cos}^{\mathrm{n}} \mathrm{u}} \\ $$
find-I-n-0-pi-4-du-cos-n-u-