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1. |
If X(k) discrete Fourier transform of x(n), then the inverse discrete Fourier transform of X(k) is? |
A. | ( frac{1}{N} sum_{k=0}^{N-1}X(k)e^{-j2 kn/N} ) |
B. | ( sum_{k=0}^{N-1}X(k)e^{-j2 kn/N} ) |
C. | ( sum_{k=0}^{N-1}X(k)e^{j2 kn/N} ) |
D. | ( frac{1}{N} sum_{k=0}^{N-1}X(k)e^{j2 kn/N} ) |
Answer» E. | |