If $\left|\begin{array}{rrr}-a & b & c \ a & -b & c \ a & b & -c\end{array}\right|=k a b c$, then the value of $k$ is :

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If \(\left|\begin{array}{rrr}-a & b & c \\ a & -b & c \\ a & b & -c\end{array}\right|=k a b c\),…