Question: The function f ( t ) = 5 cos 6 0 0 pi t + 7 cos 9 0 0 nt is sampled at

The function f(t)=5 cos 600\pi t +7 cos 900nt is sampled at 300 samples per second starting at t =0.00025s. What would be the minimum sampling rate to avoid false frequencies in the sampled data?

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