The number of solutions of the pair of equations \( 2 \sin ^{2} \th...

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The number of solutions of the pair of equations \( 2 \sin ^{2} \theta-\cos 2 \theta=0 \) and \( 2 \cos ^{2} \theta-3 \sin \theta=0 \) in the interval
\( \mathrm{P} \) \( [0,2 \pi] \) is

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