If \( \omega \neq 1 \) is the complex cube root of unity and matrix...

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If \( \omega \neq 1 \) is the complex cube root of unity and matrix \( \mathrm{H}=\left[\begin{array}{cc}\omega & 0 \\ 0 & \omega\end{array}\right] \), then \( \mathrm{H}^{70} \) is equal to -
\( \mathrm{P} \)
(1) 0
(2) \( -\mathrm{H} \)
(3) \( \mathrm{H}^{2} \)
(4) \( \mathrm{H} \)
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