0606 P12 - Jun 2018 - Q8 - 8 marks
8427
(a) Solve \(3\cos^2\theta+4\sin\theta=4\) for \(0^\circ\leqslant\theta\leqslant180^\circ\).
(b) Solve \(\sin2\phi=\sqrt3\cos2\phi\) for \(-\dfrac{\pi}{2}\leqslant\phi\leqslant\dfrac{\pi}{2}\) radians.
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