And as the spectrum of the discrete time sign, this exact same spectrum will periodically repeat if we extended the frequency higher past $f_s$ these types of which the spectrum proven is likewise the exact same spectrum in each frequency band from $nf_s$ to $(n+one)f_s$ for almost any integer $n$. https://pginsector15gurugram.wordpress.com/2025/07/28/affordable-pg-in-gurgaon-for-students-explore-osmstays-now/