And because the spectrum of a discrete time signal, this similar spectrum will periodically repeat if we extended the frequency greater over and above $f_s$ such that the spectrum demonstrated is likewise the exact same spectrum in every single frequency band from $nf_s$ to $(n+one)f_s$ for virtually any integer $n$. https://medium.com/@PayingGuestGurgaon/top-student-friendly-pg-in-gurgaon-sector-14-only-at-osmstays-067dab32a86b