Assignment:
Using the Fourier transform integral, find Fourier transforms of the following signals.
xa(t) = t *exp(-αt) * u(t), α > 0;
xb(t) = t2 * u(t) * u(1 – t)
xc(t) = exp(-αt) * u(t) * u(1 – t), α > 0;
Provide complete and step by step solution for the question and show calculations and use formulas.