Part A We will consider a signal x(t), which is composed of a linear combination of complex exponentials, with different amplitudes, frequencies and phases: x(t) = [Xk-jakt k=1 where X are complex numbers. You will write a Matlab function named SumComplexExp which takes Xk, k and the time instants t that x(t) will be computed. A sample of this kind of function is given below: New Open Save 1 2 3 4 5 EDITOR 6 7 8 9 10 FILE PUBLSH Find Files Compare end Print SumComplexExp.m x + VIEW Go To Find Y NAVIGATE Write your function here: N Insert fx FA Comment % 83 % Indent E EDIT Breakpoints Run Run and Y Advance BREAKPOINTS Run Section Advance function [x] = SumComplexExp (t, xk, omegak) t: 1xT vector that contains the time instants over which x (t) will be computed. Xk: 1xN complex-valued vector. kth element is X_k. % omegak: 1xN vector kth element is 2 k. You can use length function of the Matlab to determine N when Xk is given. RUN Run and Time After writing your function, take t=[0:0.002:2], Xk=[-2j 1-j 1+j 2j] and omegak=[-] Using your function, compute the signal x, obviously it will be complex valued. Then, extract the real and imaginary parts of x. Plot the real and imaginary parts (versus t) separately. Also, extract the magnitude and phase of x and plot them separately. In all your plots, put the labels and titles properly.