Using the same form of x(t) as in the previous problem, fix omega = 2pi middot 1, alpha = 1 and investigate the effect of different values of theta. Use Matlab to write a function, labl_4 middot m, that plots x(t) on a single plot for a. theta = 0 b. theta = pi/4 c. theta = pi/2 d. theta = 3pi/4 e. theta = pi plot the traces in different colors, and use Matlab's legend command to annotate your plot