And as the spectrum of the discrete time signal, this similar spectrum will periodically repeat if we extended the frequency bigger further than $f_s$ these the spectrum proven can also be the identical spectrum in each individual frequency band from $nf_s$ to $(n+1)f_s$ for just about any integer $n$. Gurugram https://boyspggurgaonsector15.family.blog/2025/07/28/find-your-ideal-pg-in-sector-14-gurgaon-with-osmstays/