If \[\omega \] be a complex cube root of unity, then \[\left| \,\begin{matrix} 1 & \omega & -{{\omega }^{2}}/2 \\ 1 & 1 & 1 \\ 1 & -1 & 0 \\ \end{matrix}\, \right|=\]

If \[\omega \] be a complex cube root of unity, then �

1.	If \[\omega \] be a complex cube root of unity, then \[\left\| \,\begin{matrix} 1 & \omega & -{{\omega }^{2}}/2 \\ 1 & 1 & 1 \\ 1 & -1 & 0 \\ \end{matrix}\, \right\|=\]
A.	0
B.	1
C.	\[\omega \]
D.	\[{{\omega }^{2}}\]
Answer» B. 1

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If \[\omega \] be a complex cube root of unity, then \[\left| \,\begin{matrix} 1 & \omega & -{{\omega }^{2}}/2 \\ 1 & 1 & 1 \\ 1 & -1 & 0 \\ \end{matrix}\, \right|=\]

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