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A signal described by y(t) = .25*sin(6000*t) + cos(3500*t) was sampled with fs = 1 kHz....

A signal described by y(t) = .25*sin(6000*t) + cos(3500*t) was sampled with fs = 1 kHz. Determined:

a) Whether this signal was aliased. Provide the spectral plot (magnitude versus frequency)
b) If the signal proved to be aliased, find the right sampling rate
c) Provide the spectral plot indicating the right frequencies of the signal

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