Please use matlab to complete

Plot Xa(w) in a range of frequencies [wmin, Wmax]. Choose the appropriate range and comment on your choice. Hint: a good plot should show all the peculiarities of a function/signal, thus, your plot should clearly show the range where Xa(w) is (i) determined and (ii) has meaningful values. (5 marks) From the obtained plot, conclude on the bandwidth of Xa(w). You should write the bandwidth B down in your report, show it on a graph and comment on your choice. Hint: see a figure below for an example of a bandlimited signal. Consider the two-sided exponential decay signal xa(t) = e-alt for an arbitrary value of a dimensionless parameter a. In this case, the subscript 'a' indicates that x(t) is an analogue signal. One can show (see Chapter 6 for the details of derivation) that the Fourier Transform of xa(t) is given by Xa(w) = 2a a2 + w2 Set a = 10 + a 5, where a is the last digit of your student number. For, example, if the last digit of your student number is 0, then a = 10; if it is 9, then a = 55. (10 marks) Plot Xa(w) in a range of frequencies [Wmin, Wmax]. Choose the appropriate range and comment on your choice. Hint: a good plot should show all the peculiarities of a function/signal, thus, your plot should clearly show the range where Xa(w) is (i) determined and (ii) has meaningful values. (5 marks) From the obtained plot, conclude on the bandwidth of Xa(w). You should write the bandwidth B down in your report, show it on a graph and comment on your choice. Hint: see a figure below for an example of a bandlimited signal