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5.5 Small Angle Approximations

5.5 Small Angle Approximations

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Question 2

Given that θ\thetaθ is a small angle, find an approximation for cos⁡(3θ)\cos(3\theta)cos(3θ).

Select the correct answer from the options below:

1−9θ221 - \frac{9\theta^2}{2}1−29θ2​

1−3θ221 - \frac{3\theta^2}{2}1−23θ2​

3−3θ223 - \frac{3\theta^2}{2}3−23θ2​

1−9θ21 - 9\theta^21−9θ2

[3]
Markscheme

5.5 Small Angle Approximations Questions

  1. A Level
  2. /Maths
  3. /5.5 Small Angle Approximations

25 exam-style questions on Edexcel A Level Maths 5.5 Small Angle Approximations. Each one has a worked solution and a mark scheme showing where the marks go.

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