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MULTIPLE CHOICE QUESTIONS 2 marks each, Select and write the most appropriate answer from the given alternatives in, each of the following:, 1. A=, and A (adj A) =kl, then the value of 'k' is, (a) 2 (b) - 2 (c) 10 (d) - 10., (March '14), 2. The element in the first row and third column of the inverse of the matrix, 12-3, 0 1, 2 is, (a) -2 (b) 0 (c) 1 (d) 7., 20, 3. If A is a matrix such that A (adj A)=, then |A|=.., 020, (a) 400 (b) 20 (c) 10 (d) 0., 4. If A=, then adjoint of matrix A is, (a), (b), 2, (d), (March '18), (c), 6 -5, I has no inverse, then, kJ, 5. If the matrix, 2, 14 -1, (a) k 1 (b) k=-1 (c) k=0 (d) k=2., (2 0, 6. The inverse of the matrix 01, 0 is, 01, :-, (b), 0-10, (a) 0 1, 0 0, 32

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(c), (d), -1, (Oct. '14), 7. If A=, ,B, then (B-A) is equal to, 2 2, (a), (b), (c), (0 1 2), 8. If A=1 2 3 and A, 1-1 1), 6 2c, 5 -3 1), -8, then, 3 a 1J, (a) a = 2, c = -;, (b) a= 1, c = – 1, (c) a = – 1, c = 1, (6) a-, 9. The inverse of the matrix, is, (a), 13 3, (b), 13, 31, -3 2, (March '17), (c), (d), 13 3 -2, 52, 10. The inverse of the matrix, is, 3, (a), (b), 2., (d), (July '1, -2, 115