1. The CT signal x(t)=3cos (600πt) + 6cos2 (mπt) is critically sampled (Nyquist rate) by fs=4000 Hz. Find: i. The value of m. ii. The frequency components of the signal. iii. The frequency resolution (Δf) of the output spectrum if the sampled signal is processed by 64 point-DFT.

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