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Solve the equation $\cos(\theta - 60^\circ) = 3\sin\theta$, where $0^\circ \leq \theta \leq 360^\circ$.
Mathematics 9709 · AS & A Level · Trigonometry
Trigonometry — practice question
Worked solution & mark scheme
This 5-mark question has a full step-by-step worked solution and mark scheme. One marking point: “Apply the correct cosine identity to rewrite the relation in terms of $\cos\theta$ and $\sin\theta$” …
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