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Trigonometry and Modelling

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Question 167

Verify, for 0≤θ<π0 \leq \theta < \pi0≤θ<π, that

θ=π12,5π12 \theta = \frac{\pi}{12}, \frac{5\pi}{12} θ=12π​,125π​

are solutions of

4cos⁡θ=cosec⁡θ 4 \cos \theta = \operatorname{cosec} \theta 4cosθ=cosecθ
[5]
Markscheme

Trigonometry and Modelling Questions

  1. A Level
  2. /Maths
  3. /Trigonometry and Modelling

348 exam-style questions on Edexcel A Level Maths Trigonometry and Modelling, covering 7.1 Addition Formulae, 7.2 Double Angle Formulae, 7.3 Solving Trigonometric Equations, 7.4 Simplifying a cos x +- b sin x, 7.5 Proving Trigonometric Identities, and 7.6 Modelling with Trigonometric Functions. Each one has a worked solution and a mark scheme showing where the marks go.

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