Question Number 37289 by math khazana by abdo last updated on 11/Jun/18
$${calculate}\:\int_{\mathrm{0}} ^{\mathrm{2}\pi} \:\:\:\:\:\:\frac{{dx}}{{cos}^{\mathrm{2}} {t}\:\:+\mathrm{4}{sin}^{\mathrm{2}} {t}}{dt}\:. \\ $$
calculate-0-2pi-dx-cos-2-t-4sin-2-t-dt-