1.

If X(k) is the N/2 point DFT of the sequence x(n), then what is the value of X(k+N/2)?

A. F<sub>1</sub>(k)+F<sub>2</sub>(k)
B. F<sub>1</sub>(k)- W<sub>N</sub><sup>k</sup> F<sub>2</sub>(k)
C. F<sub>1</sub>(k)+W<sub>N</sub><sup>k</sup> F2(k)
D. None of the mentioned
Answer» C. F<sub>1</sub>(k)+W<sub>N</sub><sup>k</sup> F2(k)


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