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If nth-order square matrix {A} is a orthogonal, then |adj(adjA
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If nth-order square matrix is a orthogonal, then |adj(adjA)| is (a)always -1 if n is even (b) always 1 if n is odd (c) always 1 (d) none of these

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Question Text
If nth-order square matrix is a orthogonal, then |adj(adjA)| is (a)always -1 if n is even (b) always 1 if n is odd (c) always 1 (d) none of these