railway RRB JE (CBT I + CBT II) Mock Test 2024 Signals and Systems Sampling

Consider the analog signal x(t) = 3 cos 100 πt. If the signal is sampled at 200 Hz, the discrete time signal obtained will be

1

3 cos (πn/4)

2

3 cos (πn/2)

3

3 cos (πn)

4

3 cos (πn/3)

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