Question: 1. Let A = [3 +m , B = -2 and c = [14 - m 6 Find the matrix X, if 3 3. 18

1. Let A = [3 +m , B = -2 and c = [14 - m 6 Find the matrix X, if 3 3. 18 + m 5 -10 -2. A2 + 3XT _ _ C (13 marks) 2. The 3 x 3 matrices A and B are defined in terms of a scalar constant k by K 9 2+m] 1 +m 2 A = 1 k O and B = k 2 -1 L5 -1 1 4 1 1 a. Find an expression for det A, in terms of k. (1 1 marks) b. Find the possible values of k given that AB is singular. (16 marks)

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