A root of the equation \[\left| \,\begin{matrix} 3-x & -6 & 3 \\ -6 & 3-x & 3 \\ 3 & 3 & -6-x \\ \end{matrix}\, \right|=0\]is [Roorkee 1991; RPET 2001; J & K 2005]

A root of the equation \[\left| \,\begin{matrix} 3-x & -6 & 3 \

1.	A root of the equation \[\left\| \,\begin{matrix} 3-x & -6 & 3 \\ -6 & 3-x & 3 \\ 3 & 3 & -6-x \\ \end{matrix}\, \right\|=0\]is [Roorkee 1991; RPET 2001; J & K 2005]
A.	6
B.	3
C.	0
D.	None of these
Answer» D. None of these

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A root of the equation \[\left| \,\begin{matrix} 3-x & -6 & 3 \\ -6 & 3-x & 3 \\ 3 & 3 & -6-x \\ \end{matrix}\, \right|=0\]is [Roorkee 1991; RPET 2001; J & K 2005]

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