Using MATLAB find: a) the product of matrices A and B, i.e. A*B, b) determinants of the matrices A, B and A*B, c) inverse of the matrices A, B, and A*B, for given A 5 10 20 100 60 40 20 10 40 80 60 100 12 11 10 9 B= -2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 0 Problem 2. Using MATLAB find the roots of the following polynomials: a) x+4x -5x. b) x + 3x +7. c) 3x+x+x-x +7. Step Problem 3. Using Simulink, model the system below and obtain the output for the following values of a: -1, -0.1, 0, 0.1, 1. 1 s+a Scope