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1.5 Trigonometry

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Question 22

Prove that 11+cos⁡θ+11−cos⁡θ≡2sin⁡2θ\dfrac{1}{1 + \cos\theta} + \dfrac{1}{1 - \cos\theta} \equiv \dfrac{2}{\sin^2\theta}1+cosθ1​+1−cosθ1​≡sin2θ2​ where sin⁡θ≠0\sin\theta \neq 0sinθ=0.

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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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