1.

The 8 point DFT of the signal\(x\left[ n \right] = 6{\cos ^2}\frac{\pi }{4}n\) is:

A. X[k] = [24, 0, 12, 0, 12, 0, 12, 0]
B. X[k] = [12, 0, 0, 0, 0, 0, 0, 0, 10]
C. X[k] = [12, 0, 24, 0, 0, 0, 0, 24, 0]
D. X[k] = [24, 0, 12, 0, 0, 0, 12, 0]
Answer» E.


Discussion

No Comment Found