If \[A=\left[ \begin{matrix} 1 & -1 & 1 \\ 0 & 2 & -3 \\ 2 & 1 & 0 \\ \end{matrix} \right]\] and \[B=(adj\,A)\], and \[C=5A,\] then \[\frac{|adjB|}{|C|}\]= [Kerala (Engg.) 2005]

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

1.	If \[A=\left[ \begin{matrix} 1 & -1 & 1 \\ 0 & 2 & -3 \\ 2 & 1 & 0 \\ \end{matrix} \right]\] and \[B=(adj\,A)\], and \[C=5A,\] then \[\frac{\|adjB\|}{\|C\|}\]= [Kerala (Engg.) 2005]
A.	5
B.	25
C.	-1
D.	1
Answer» E.

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If \[A=\left[ \begin{matrix} 1 & -1 & 1 \\ 0 & 2 & -3 \\ 2 & 1 & 0 \\ \end{matrix} \right]\] and \[B=(adj\,A)\], and \[C=5A,\] then \[\frac{|adjB|}{|C|}\]= [Kerala (Engg.) 2005]

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