4. 50 Points Determine the matrices al, a2, b1, c1, c2, >> a1= ones (3): a2-ones (3,4); c2-eye (3, 4); bl=zeros (4); c1-eye (3); 5. 50 Points If A = 400 and B = 600, create a row matrix C such that E(3) C(4) (A/4 (A* > >> 4) = Then compute the matrix D >> D =[C(1) | C(2), C(1) & C(2), ~C(1); C(1) | C(2) | C(3) , ~E(1) & ~C(2) & C(3), C(1) & C(2) | C(3)] Do not use MATLAB. Show hand calculations 6. (50+20 70 Points) Matrices A, B and C are defined as: 3 4 9 8 C=14 6 8 2 A=16 2 4 1 Determine the matrices M1 and M2 such that M1 = A * B and M2 = A* C. In both cases show the details of your calculations. Check you results with those obtained using MATLAB 7. 30 Points List all Matlab commands required to create the matrix A using colon operators 11 12 13 14 15 A=20 22 24 26 28 30 27 24 21 18