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3.8 Numerical Methods (A-level only)

3.8 Numerical Methods (A-level only)

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Question 3

Figure 1 below shows part of the curve y=2xsin⁡xy = 2x\sin xy=2xsinx, where x x\,x is measured in radians. The maximum point on the curve is PPP.

Figure for question 5

a.

Show that the xxx-coordinate of P P\,P satisfies the equation

tan⁡x+x=0\tan x + x = 0tanx+x=0

[3]
b.

Use the Newton-Raphson method, with a suitable initial value, to find the xxx-coordinate of PPP, giving your answer correct to four decimal places. Show the result of each iteration.

[4]
Markscheme

3.8 Numerical Methods (A-level only) Questions

  1. A Level
  2. /Maths
  3. /3.8 Numerical Methods (A-level only)

129 exam-style questions on WJEC A Level Maths 3.8 Numerical Methods (A-level only), covering 3.8.1 Numerical Methods (A-level only), 3.8.2 Numerical Methods (A-level only), 3.8.3 Numerical Methods (A-level only), 3.8.4 Numerical Methods (A-level only), and 3.8.5 Numerical Methods (A-level only). Each one has a worked solution and a mark scheme showing where the marks go.

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