And Because the spectrum of the discrete time signal, this exact same spectrum will periodically repeat if we prolonged the frequency higher beyond $f_s$ these types of which the spectrum revealed is additionally the identical spectrum in every single frequency band from $nf_s$ to $(n+1)f_s$ for any integer $n$. 1. https://boyspgsector15gurgaon.blogspot.com/2025/07/find-ideal-boys-pg-in-gurgaon-sector-15.html