The function $f(t)$ has the Fourier Transform $g(\omega)$. The Fourier Transform
$f f(t) g(t)\left(=\int_{-\infty}^{\infty} g(t) e^{-j \omega t} d t\right)$ is
- $\frac{1}{2 \pi} f(\omega)$
- $\frac{1}{2 \pi} f(-\omega)$
- $2 \pi f(-\omega)$
- None of the above