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Trigonometric Functions

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Question 160

Solve, for 0≤x≤3600 \leq x \leq 3600≤x≤360, the equation,

sec⁡2x+5sec⁡x+k=0 \sec^2 x + 5 \sec x + k = 0 sec2x+5secx+k=0

where 4<k<64<k<64<k<6.

Give your answers in terms of kkk.

[5]
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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