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1 -1. 1 Let A = 2 1 -3 and (10) B 1 1 (a) 5 (b) -1 4 -5 1 2 0 283

1 -1. 1 Let A = 2 1 -3 and (10) B 1 1 (a) 5 (b) -1 4 -5 1 2 0 283 -2 3 If B is the inverse of matrix A, then a is. (c) 2 (d) -2

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