And because the spectrum of the discrete time sign, this exact spectrum will periodically repeat if we prolonged the frequency higher over and above $f_s$ these kinds of which the spectrum shown is also the exact same spectrum in just about every frequency band from $nf_s$ to $(n+1)f_s$ for almost https://pginsector15gurugram.tech.blog/2025/07/28/book-modern-pg-for-boys-in-gurgaon-osmstays/