1.5 Solve the following system of linear equations using (a) matrix inversion, and (b) Cramer's rule. (10) 13 0 x4 0 0.5 1 y W H 0.5 0 1 z 1.6 Use Cramer's rule to find x in the equation systems below and simulate your result by using any programming language. (10) yz 2 3x 2y z 4 5x 4y 1 1.7 Solve the following system of linear equations by using the inverse matrix method: (10) xty+ z=4 -2x - y + 3z = 1 y + 5z = 9 1.8 Apply the Brute force algorithm to find the minimum cost Hamiltonian circuit on the graph below. (10) A