If \[A=\left| \,\begin{matrix} -1 & 2 & 4\\ 3 & 1 & 0\\ -2 & 4 & 2\\ \end{matrix}\, \right|\]and \[B=\left| \,\begin{matrix} -2 & 4 & 2\\ 6 & 2 & 0\\ -2 & 4 & 8\\ \end{matrix}\, \right|\], then B is given by [Tamilnadu (Engg.) 2002]

If \[A=\left| \,\begin{matrix} -1 & 2 & 4\\ 3 & 1 & 0\\ -2 & 4 &

1.	If \[A=\left\| \,\begin{matrix} -1 & 2 & 4\\ 3 & 1 & 0\\ -2 & 4 & 2\\ \end{matrix}\, \right\|\]and \[B=\left\| \,\begin{matrix} -2 & 4 & 2\\ 6 & 2 & 0\\ -2 & 4 & 8\\ \end{matrix}\, \right\|\], then B is given by [Tamilnadu (Engg.) 2002]
A.	\[B=4A\]
B.	\[B=-4A\]
C.	\[B=-A\]
D.	\[B=6A\]
Answer» C. \[B=-A\]

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If \[A=\left| \,\begin{matrix} -1 & 2 & 4\\ 3 & 1 & 0\\ -2 & 4 & 2\\ \end{matrix}\, \right|\]and \[B=\left| \,\begin{matrix} -2 & 4 & 2\\ 6 & 2 & 0\\ -2 & 4 & 8\\ \end{matrix}\, \right|\], then B is given by [Tamilnadu (Engg.) 2002]

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