And As the spectrum of the discrete time sign, this same spectrum will periodically repeat if we extended the frequency better over and above $f_s$ these kinds of which the spectrum demonstrated is also a similar spectrum in each frequency band from $nf_s$ to $(n+1)f_s$ for any integer $n$. four. https://pginsector15gurugram.wordpress.com/2025/07/28/affordable-pg-in-gurgaon-for-students-explore-osmstays-now/