Exercise 4 a) (5 pt) Find the Fourier transform of the continuous time signal
x(t)=e^(-t)sin(t)u(t-2)
b) (5 pt) The discrete time signal
x[n]
has Fourier transform
x(e^(j\omega ))=(-6-11e^(-j\omega ))/(2-9e^(-j\omega )+4e^(-2j\omega ))
. Find
.