railway RRB JE (CBT I + CBT II) Mock Test 2024 Signals and Systems Discrete Fourier Transform (DFT) and Discrete Fourier Series (DFS)
Spectrum of \(x\left( n \right) = \left\{ {1,\;2,\;3,\;4,\;\begin{array}{*{20}{c}} 5\\ \uparrow \end{array},\; - 4,\; - 3,\; - 2, - 1} \right\}\) signal will be:
1
Real and even
2
Imaginary and even
3
Real and odd
4
Imaginary and Odd