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3.5 Trigonometry (A-level only)

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Question 23

Using small angle approximations, show that for small, non-zero values of xxx

xsin⁡3x1−cos⁡6x≈K \frac{x \sin 3x}{1 - \cos 6x} \approx K 1−cos6xxsin3x​≈K

where KKK is a constant to be determined.

[4]
Markscheme

3.5 Trigonometry (A-level only) Questions

  1. A Level
  2. /Maths
  3. /3.5 Trigonometry (A-level only)

223 exam-style questions on WJEC A Level Maths 3.5 Trigonometry (A-level only), covering 3.5.1 Trigonometry (A-level only), 3.5.2 Trigonometry (A-level only), 3.5.3 Trigonometry (A-level only), 3.5.4 Trigonometry (A-level only), 3.5.5 Trigonometry (A-level only), 3.5.6 Trigonometry (A-level only), 3.5.7 Trigonometry (A-level only), and 3.5.8 Trigonometry (A-level only). Each one has a worked solution and a mark scheme showing where the marks go.

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