railway RRB JE (CBT I + CBT II) Mock Test 2024 Signals and Systems Discrete Fourier Transform (DFT) and Discrete Fourier Series (DFS)
एक संकेत \(x\left( n \right) = \left\{ { - 1,\;2,\;\begin{array}{*{20}{c}} 4\\ \uparrow \end{array},\;2,\; - 1,\;3} \right\}\) पर विचार करें. \(\mathop \smallint \nolimits_{ - \pi }^\pi X\left( \omega \right)d\omega \) क्या है?
1
7
2
14π
3
8π
4
9