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Rewrite $\cosec\,\theta = 3\sin\theta + \cot\theta$ in terms of $\cos\theta$ only, then solve it for $0^\circ < \theta < 180^\circ$.
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: “Write the equation correctly using $\sin\theta$ and $\cos\theta$ only” …
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