Question Number 202564 by mathocean1 last updated on 30/Dec/23
$${Find}\:{the}\:{transformation}\:{of}\:{Fourier}: \\ $$$${z}\left({t}\right)={cos}\left(\mathrm{2}\pi{F}_{\mathrm{1}} {t}\right)+{cos}\left(\mathrm{2}\pi{F}_{\mathrm{2}} {t}\right) \\ $$