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1.5 Trigonometry

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Question 18

Prove that (sin⁡θ+cos⁡θ)2≡1+2sin⁡θcos⁡θ(\sin\theta + \cos\theta)^2 \equiv 1 + 2\sin\theta\cos\theta(sinθ+cosθ)2≡1+2sinθcosθ

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Markscheme

1.5 Trigonometry Questions

  1. A Level
  2. /Maths
  3. /1.5 Trigonometry

97 exam-style questions on WJEC A Level Maths 1.5 Trigonometry, covering 1.5.1 Trigonometry, 1.5.2 Trigonometry, 1.5.3 Trigonometry, 1.5.4 Trigonometry, and 1.5.5 Trigonometry. Each one has a worked solution and a mark scheme showing where the marks go.

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