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Trigonometry and Modelling

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Question 160

Solve, for 0≤θ<360∘0 \leq \theta < 360^\circ0≤θ<360∘, where k k\,k is an acute angle, giving your answers in terms of kkk,

sin⁡(θ−45)=cos⁡(θ+k) \sin(\theta - 45) = \cos(\theta + k) sin(θ−45)=cos(θ+k)
[6]
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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