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3.4.7 Trigonometry (A-level only)

3.4.7 Trigonometry (A-level only)

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Question 2

Prove the identity:

1−2sin⁡2xcos⁡x−sin⁡x≡cos⁡x+sin⁡x \frac{1 - 2\sin^2 x}{\cos x - \sin x} \equiv \cos x + \sin x cosx−sinx1−2sin2x​≡cosx+sinx
[2]
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3.4.7 Trigonometry (A-level only) Questions

  1. A Level
  2. /Maths
  3. /3.4.7 Trigonometry (A-level only)

38 exam-style questions on CCEA A Level Maths 3.4.7 Trigonometry (A-level only). Each one has a worked solution and a mark scheme showing where the marks go.

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