The signal x(t) = eb'u(-t) is an example of a left-sided real exponential signal. Sket...

The signal x(t) = eb'u(-t) is an example of a left-sided real exponential signal. Sketch this signal for b > 0 and then show that the Fourier transform of this signal is

if b > 0. Also, using (11.15), show that the Fourier transform does not exist if b<0.