If \( \omega \) is non-real complex cube root of unity, then \( \le...

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If \( \omega \) is non-real complex cube root of unity, then \( \left|\begin{array}{ccc}1 & \omega & \omega^{2} \\ \omega & \omega^{2} & 1 \\ \omega^{2} & \omega & 1\end{array}\right| \) is equal to
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