2. (a) Given the 2 x 2 matrix A = (1 3), find the inverse of A+ A”, where AT denotes the transpose of A. (b) Find the va
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2. (a) Given the 2 x 2 matrix A = (1 3), find the inverse of A+ A”, where AT denotes the transpose of A. (b) Find the va
2. (a) Given the 2 x 2 matrix A = (1 3), find the inverse of A+ A”, where AT denotes the transpose of A. (b) Find the values of r for which the determinant of the matrix A below is 0 1211 A = 12 1 1 1 (ii) Find the inverse of A when r = 2.
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