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 If A is the square matrix order 3 such that |A|=2, then |adj(adj(adjA))| is 

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a
512
b
256
c
64
d
None of these

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detailed solution

Correct option is B

We know that |adj⁡(adj⁡A)|=|A|(n−1)2⇒|adj⁡(adj⁡(adjA))|=|adj⁡A|(n−1)2=|A|(n−1)3=28=256


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Let A be a square matrix of order 3 such that |Adj A|=100, then |A| equals 


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