9709 P3 - Jun 2009 - Q3 - 5 marks
51
(i) Prove the identity \(\csc 2\theta + \cot 2\theta \equiv \cot \theta\).
(ii) Hence solve the equation \(\csc 2\theta + \cot 2\theta = 2\), for \(0^\circ \leq \theta \leq 360^\circ\).
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