If \[A=\left[ \begin{matrix} 1 & 2 & -1 \\ -1 & 1 & 2 \\ 2 & -1 & 1 \\ \end{matrix} \right],\] then det(adj (adj A)) is

If \[A=\left[ \begin{matrix} 1 & 2 & -1 \\ -1 & 1 & 2 \\

1.	If \[A=\left[ \begin{matrix} 1 & 2 & -1 \\ -1 & 1 & 2 \\ 2 & -1 & 1 \\ \end{matrix} \right],\] then det(adj (adj A)) is
A.	\[{{(14)}^{4}}\]
B.	\[{{(14)}^{3}}\]
C.	\[{{(14)}^{2}}\]
D.	\[{{(14)}^{1}}\]
Answer» B. \[{{(14)}^{3}}\]

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If \[A=\left[ \begin{matrix} 1 & 2 & -1 \\ -1 & 1 & 2 \\ 2 & -1 & 1 \\ \end{matrix} \right],\] then det(adj (adj A)) is

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