And as the spectrum of the discrete time sign, this very same spectrum will periodically repeat if we extended the frequency increased over and above $f_s$ these kinds of that the spectrum shown is usually the same spectrum in each frequency band from $nf_s$ to $(n+1)f_s$ for any integer $n$. https://pginsector15gurugram.wordpress.com/2025/07/28/affordable-pg-in-gurgaon-for-students-explore-osmstays-now/