Find the adjoint of the matrix A=[[1,2,2...

Find the adjoint of the matrix `A=[[1,2,2],[2,1,2],[2,2,1]]` and hence show that `A(a d j\ A)=|A|\ I_3` .

A

A

B

`A^(T)`

C

3A

D

`3A^(T)`

Text Solution

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The correct Answer is:

D

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