Question Number 28987 by abdo imad last updated on 02/Feb/18
$${find}\:\:\int_{\mathrm{0}} ^{\mathrm{2}\pi} \:\:\:\:\:\frac{{dt}}{\left({a}+{bcost}\right)^{\mathrm{2}} }.{with}\:\:{a}>{b}>\mathrm{0}\:. \\ $$
find-0-2pi-dt-a-bcost-2-with-a-gt-b-gt-0-