The adjoint of \[\left[ \begin{matrix} 1 & 1 & 1 \\ 1 & 2 & -3 \\ 2 & -1 & 3 \\ \end{matrix} \right]\]is [RPET 1993]

\[\left[ \begin{matrix} -3 & \,\,4 & 5 \\ 9 & -1 & -4 \\ 5 & -3 & -1 \\ \end{matrix} \right]\]

\[\left[ \begin{matrix} 3 & -9 & -5 \\ -4 & 1 & 3 \\ -5 & 4 & 1 \\ \end{matrix} \right]\]

\[\left[ \begin{matrix} 3 & -4 & -5 \\ -9 & 1 & 4 \\ -5 & 3 & 1 \\ \end{matrix} \right]\]

The adjoint of \[\left[ \begin{matrix} 1 & 1 & 1 \\ 1 & 2

1.	The adjoint of \[\left[ \begin{matrix} 1 & 1 & 1 \\ 1 & 2 & -3 \\ 2 & -1 & 3 \\ \end{matrix} \right]\]is [RPET 1993]
A.	\[\left[ \begin{matrix} 3 & -9 & -5 \\ -4 & 1 & 3 \\ -5 & 4 & 1 \\ \end{matrix} \right]\]
B.	\[\left[ \begin{matrix} 3 & -4 & -5 \\ -9 & 1 & 4 \\ -5 & 3 & 1 \\ \end{matrix} \right]\]
C.	\[\left[ \begin{matrix} -3 & \,\,4 & 5 \\ 9 & -1 & -4 \\ 5 & -3 & -1 \\ \end{matrix} \right]\]
D.	None of these
Answer» C. \[\left[ \begin{matrix} -3 & \,\,4 & 5 \\ 9 & -1 & -4 \\ 5 & -3 & -1 \\ \end{matrix} \right]\]

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The adjoint of \[\left[ \begin{matrix} 1 & 1 & 1 \\ 1 & 2 & -3 \\ 2 & -1 & 3 \\ \end{matrix} \right]\]is [RPET 1993]

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