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|Am x n| = 3 |adj A| = 243 then the value n is _______(a) 4 (b) 5 (c) 6 (d) 1 |
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Answer» (b) 5 |adj A| = |A|n - 1 , n is order of matrix 243 = 3n - 1 34 = 3n - 1 n = 5 |
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