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1.7.21 Use identities to solve equations (A-level only)

1.7.21 Use identities to solve equations (A-level only)

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Question 3

Solve, for −180≤x≤180-180 \leq x \leq 180−180≤x≤180, the equation,

cos⁡2x−7sin⁡x+3=0 \cos 2x - 7 \sin x + 3 = 0 cos2x−7sinx+3=0
[5]
Markscheme

1.7.21 Use identities to solve equations (A-level only) Questions

  1. A Level
  2. /Maths
  3. /1.7.21 Use identities to solve equations (A-level only)

37 exam-style questions on OCR (MEI) A Level Maths 1.7.21 Use identities to solve equations (A-level only). Each one has a worked solution and a mark scheme showing where the marks go.

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