Question: The modulation signal m(t) = 2 cos 400pi(t) + 4 cos 500pi(t) is multiplied by the carrier c(t)= 100 cos 8000pi(t). 1. Determine the time

The modulation signal m(t) = 2 cos 400pi(t) + 4 cos 500pi(t) is multiplied by the carrier c(t)= 100 cos 8000pi(t).

1. Determine the time domain expression for the DSB AM signal.

2. Sketch the spectrum of u(t) and indicate USB.

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