a) Let x = (2, 1, 3) and y = (1, 1, -1) and compute the given expression using MATLAB. i) x +y AN(8) ii) 2x - 3y i) 4x+10y b) Let A A= and B= and compute the given expression. i) 4A +B ii) 2A -3B. AP(5) c) (6 4 3 Let A=7 3 4 9 6 5 i) Create a column vector in MATLAB that contains all the columns of A. ii) Create a column vector in MATLAB that contain all the rows of A i) Create a vector in MATLAB that contains the 1* row and the 3" column AN(7) d) Write a MATLAB script that create a matrix in which the middle two rows, and the middle two columns are l's, and the rest are O's AP(5)