Question: Consider a sequence x[n] that is real, causal, and of finite length with N = 6. The imaginary part of the 6-point discrete Fourier transform

Consider a sequence x[n] that is real, causal, and of finite length with N = 6. The imaginary part of the 6-point discrete Fourier transform of this sequence is?

Akkitionally, it is known that?

Which of the sequences shown in Figure are consistent with the information given?

- j2/V3. k= 2. j2//3. 0. jXi[k] = k = 4, otherwise.

- j2/V3. k= 2. j2//3. 0. jXi[k] = k = 4, otherwise. r X[k] = 1. k=0 2/3 2/3 3 45n 0 1 2 3 4 -2/3 -2/3 xaln] 23 4 5 -2/3 *s1) 2/3 2/3 3 4 5 n -2/3 2 3 4 5 -2/36 23 2/3 2 3 2 3 4 -2/3 -1 2/3

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