a) 3x,(n)-2x2(n) b) 0.5x,(n)x2(n) d) 5x,(n-1)-4x2(n+1) 2 signal 1 sigrol 25 15 -05 (ii) Perform the same operations in Matlab. See the example Matlab-code provided below. (There are other ways to accomplish the same tasks in Matlab, for example, using circshift). Plot the resulting sequences using sub-plots. Attach the plots with your answer 4 plots) Example: Matlab-code for generating the plotted xI(n) signal % Extra zeros needed to match the shown length of x2 % Indices correspond to samples of x2 % values show up as filled circles on stem-plots % Labels the y-axis and x-axis % Puts the title at the top >>x1-[0 001 2-1 0.5-2 0 01 >stem (n,x1,'filled') >> ylabel ( 'x-1 (n)' ) ; xlabel ( 'n' ) ; >title'x1 signal')