Matrix \[A=\left[ \begin{matrix} 1 & 0 & -k \\ 2 & 1 & 3 \\ k & 0 & 1 \\ \end{matrix} \right]\]is invertible for [UPSEAT 2002]

Matrix \[A=\left[ \begin{matrix} 1 & 0 & -k \\ 2 & 1 & 3

1.	Matrix \[A=\left[ \begin{matrix} 1 & 0 & -k \\ 2 & 1 & 3 \\ k & 0 & 1 \\ \end{matrix} \right]\]is invertible for [UPSEAT 2002]
A.	\[k=1\]
B.	\[k=-1\]
C.	\[k=0\]
D.	All real k
Answer» E.

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Matrix \[A=\left[ \begin{matrix} 1 & 0 & -k \\ 2 & 1 & 3 \\ k & 0 & 1 \\ \end{matrix} \right]\]is invertible for [UPSEAT 2002]

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