And As the spectrum of the discrete time signal, this very same spectrum will periodically repeat if we prolonged the frequency increased over and above $f_s$ this kind of the spectrum shown is likewise precisely the same spectrum in each frequency band from $nf_s$ to $(n+1)f_s$ for any integer $n$. https://girlspggurgaonsector15.fitness.blog/2025/07/28/find-your-ideal-pg-in-sector-14-gurgaon-with-osmstays/