GATE2018IN: 35

For the sequence x[n] = {1, -1,1, -1}, with n = 0,1,2,3, the DFT is computed as X(k) = $\Sigma^3_{n=1}$x[n]e^$-j\frac2{\pi}{4}$nk, for k = 0,1,2,3. The value of k for which X(k) is not zero is 0 1 2 3
For the sequence x[n] = {1, -1,1, -1}, with n = 0,1,2,3, the DFT is computed as X(k) = $\Sigma^3_{n=1}$x[n]e^$-j\frac2{\pi}{4}$nk, for k = 0,1,2,3. The value of k for which X(k) is not zero is 0 1 2 3

edited
3 days ago
in Others
LasyaReddy07
100 points