Question 2: (a) x(t) = e-tu(t) + 2ebtu(-t) (b) x(t) = e'u(-t) - 3etu(-t). (c) x(t) = 2e-'u(t) + 3e-2'u(-1) (i) Find the bilateral LT and ROC of the signals (a), (b) and (c) using the definition. If the transformation does not exist, state the reason. (ii) Verify your results by finding the bilateral LT of the signals using the LT and properties tables for (a), (b) and (c)