The value of \( \left|\begin{array}{cc}\sin \theta & -\cos \theta \...

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The value of \( \left|\begin{array}{cc}\sin \theta & -\cos \theta \\ \cos \theta & \sin \theta\end{array}\right| \) is equal to
\( \mathrm{P} \)
(1) 1
(2) -1
(3) 0
(4) 2
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