And because the spectrum of a discrete time signal, this exact same spectrum will periodically repeat if we prolonged the frequency larger past $f_s$ such the spectrum revealed is likewise the exact same spectrum in just about every frequency band from $nf_s$ to $(n+1)f_s$ for just about any integer $n$. https://girlspgsector15gurgaon.blogspot.com/2025/07/well-maintained-boys-pg-in-gurgaon.html