If A is order 3 square matrix such that `|A|=2`, then `|"adj (adj (adj A))"|` is
If A is order 3 square matrix such that `|A|=2`, then `|"adj (adj (adj A))"|` is
A. 512
B. 256
C. 64
D. none of these
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Correct Answer - B
We know that `|"adj (adj A)"|=|A|^((n-1)^(2))`
`implies |"adj(adj(adj A))"|=|"adj A"|^((n-1)^(2))`
`=|A|^((n-1)^(3))`
`=2^(8)=256`
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