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Trigonometric Functions

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Question 167

Solve, for −180≤θ≤180-180 \leq \theta \leq 180−180≤θ≤180, the equation,

sec⁡(2θ+10)=−k \sec(2\theta + 10) = -k sec(2θ+10)=−k

where k>1k>1k>1.

Give your answers in terms of kkk.

[4]
Markscheme

Trigonometric Functions Questions

  1. A Level
  2. /Maths
  3. /Trigonometric Functions

274 exam-style questions on Edexcel A Level Maths Trigonometric Functions, covering 6.1 Secant, Cosecant and Cotangent, 6.2 Graphs of Sec x, Cosec x and Cot x, 6.3 Using Sec x, Cosec x and Cot x, 6.4 Trigonometric Identities, and 6.5 Inverse Trigonometric Functions. Each one has a worked solution and a mark scheme showing where the marks go.

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