1.

The value of \[x,\]if \[\left| \,\begin{matrix}    -x & 1 & 0  \\    1 & -x & 1  \\    0 & 1 & -x  \\ \end{matrix}\, \right|=0\]is equal to  [Pb. CET 2002]

A. \[\pm \sqrt{6}\]
B. \[\pm \sqrt{2}\]
C. \[\pm \sqrt{3}\]
D. \[\sqrt{2},\sqrt{3}\]
Answer» C. \[\pm \sqrt{3}\]


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