engineering recuitment BEL Probationary Engineers Mock Test 2025 Signals and Systems Discrete Fourier Transform (DFT) and Discrete Fourier Series (DFS) Inverse Discrete Fourier Transform
The inverse Fourier transform of
\(X\left( \omega \right) = \frac{{j\omega }}{{{{\left( {2 + j\omega } \right)}^2}}}\) is
1
te-2tu(t)
2
(1 – t)e-2tu(t)
3
2te-2 tu(t)
4
(1 – 2t)e-2t u(t)