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1.8.8 Proofs with trigonometric identities

1.8.8 Proofs with trigonometric identities

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Question 1
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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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1.8.8 Proofs with trigonometric identities Questions

  1. A Level
  2. /Maths
  3. /1.8.8 Proofs with trigonometric identities

38 exam-style questions on AQA A Level Maths 1.8.8 Proofs with trigonometric identities. Each one has a worked solution and a mark scheme showing where the marks go.

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