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A2 1 Pure Mathematics

Quick questions on Trigonometry: radians, compound and double angles and the harmonic form - CCEA A-Level Mathematics

3short Q&A pairs drawn directly from our worked dot-point answer. For full context and worked exam questions, read the parent dot-point page.

What is q1?
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Convert π3\frac{\pi}{3} radians to degrees. [1 mark]
What is q2?
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Write sin⁡2θ\sin 2\theta in terms of sin⁡θ\sin\theta and cos⁡θ\cos\theta. [1 mark]
What is q3?
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Find RR when 7sin⁡θ+24cos⁡θ=Rsin⁡(θ+α)7\sin\theta + 24\cos\theta = R\sin(\theta + \alpha). [2 marks]

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