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With all necessary working shown, solve the equation $\sin(\theta - 30^\circ) + \cos \theta = 2 \sin \theta$, for $0^\circ < \theta < 180^\circ$.
Mathematics 9709 · AS & A Level · Trigonometry
Trigonometry — practice question
Worked solution & mark scheme
This 4-mark question has a full step-by-step worked solution and mark scheme. One marking point: “Use a trigonometric identity to produce an equation in $\sin\theta$ and $\cos\theta$.” …
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