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electronics and communication engineering exam question papers
1. The 4 point Discrete Fourier Transform (DFT) of a discrete time sequence {1, 0, 2, 3} is
(A): [0, - 2 + 2j, 2, - 2 - 2j]
(B): [2, 2 + 2j, 6, 2 - 2j]
(C): [6, - 1 + 3j, 0, - 1 - 3j]
(D): [6, 1 - 3j, 2, 1 + 3]
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