Question Number 28433 by abdo imad last updated on 25/Jan/18
$${let}\:{give}\:{T}_{{n}} \left({x}\right)=\:{cos}\left({narcosx}\right)\:\:{decompose}\:\frac{\mathrm{1}}{{T}_{{n}} \left({x}\right)}. \\ $$
let-give-T-n-x-cos-narcosx-decompose-1-T-n-x-