Question: Question 4 (6 marks) 6 - (29) a 24 Question 5 (6 + 3 = 9 marks) Given matrices A = (a) 5 -

Given matrices ( A=left(begin{array}{ll}1 & 6 2 & 4end{array}ight) ) and ( B=left(begin{array}{ll}5 & -1 2 &

Question 4 (6 marks) 6 - (29) a 24 Question 5 (6 + 3 = 9 marks) Given matrices A = (a) 5 - (2-3). finc and B = find 3A AB. Use the cofactor method to find the inverse of the matrix 4 = (b) Hence or otherwise, solve the system of equations below. x + 2y + z = 8 -3x + 7y + 2z = 7 -x + 3y + = 4 12 1 -3 7 2 -1 3 1)

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