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3.4 Trigonometry (A-level only)

3.4 Trigonometry (A-level only)

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Question 2
65%

Prove the identity:

cos⁡2θcos⁡θ−sin⁡θ≡cos⁡θ+sin⁡θ \frac{\cos 2\theta}{\cos \theta - \sin \theta} \equiv \cos \theta + \sin \theta cosθ−sinθcos2θ​≡cosθ+sinθ
[2]
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3.4 Trigonometry (A-level only) Questions

  1. A Level
  2. /Maths
  3. /3.4 Trigonometry (A-level only)

221 exam-style questions on CCEA A Level Maths 3.4 Trigonometry (A-level only), covering 3.4.1 Trigonometry (A-level only), 3.4.2 Trigonometry (A-level only), 3.4.3 Trigonometry (A-level only), 3.4.4 Trigonometry (A-level only), 3.4.5 Trigonometry (A-level only), 3.4.6 Trigonometry (A-level only), 3.4.7 Trigonometry (A-level only), and 3.4.8 Trigonometry (A-level only). Each one has a worked solution and a mark scheme showing where the marks go.

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