Using MATLAB compute and plot the convolution for the following pair of sequences. Make sure to use the correct discrete time axes labels: a) x(n) [124] b) x2(n)= [0, 1, -2, 3, -4] c) x3(n) [1, 2, 3, 4] d) x4(n)= [1, 2, 3, 4] h(n)=[11111] h(n) = [0.5, 1, 2, 1, 0.: h3(n) [4, 3, 2, 1] h4(n) [1, 2, 3, 4] a : Remarks - Explain, step by step, the methods used in exercises 1 - Attach your plots to your MATLAB code and handle t - What knowledge did you get from this lab?