Let A be a 3 xx 3 matrix such that adj ...

Let A be a `3 xx 3` matrix such that adj `A = [{:(,2,-1,1),(,-1,0,2),(,1,-2,-1):}]` and
B =adj (adj A) .
If `|A| = lambda and |(B^(-1))^T| = mu` then the ordered pair `(|lambda|, mu)` is equal to

A

`(3,(1)/(81))`

B

`(9,(1)/(9))`

C

`(3,81)`

D

`(9,(1)/(81))`

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The correct Answer is:

A

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