And As the spectrum of the discrete time signal, this exact spectrum will periodically repeat if we extended the frequency higher outside of $f_s$ these kinds of which the spectrum proven can also be the exact same spectrum in every frequency band from $nf_s$ to $(n+1)f_s$ for virtually any integer https://2bhkflatrentsectorkirtinagargurugram.blogspot.com/2025/07/book-affordable-1-rk-for-rent-in.html