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Iteration

Iteration

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Question 11

Using xn+1=8xn2+2\displaystyle x_{n+1} = \frac{8}{x_n^2} + 2xn+1​=xn2​8​+2 with x0=2x_0 = 2x0​=2

a.

Find the values of x1x_1x1​, x2 x_2\,x2​ and x3x_3x3​.

[3]
b.

Explain the relationship between the values of x1x_1x1​, x2 x_2\,x2​ and x3 x_3\,x3​ and the equation x3−2x2−8=0x^3 - 2x^2 - 8 = 0x3−2x2−8=0

[2]
Markscheme

Iteration Questions

  1. GCSE
  2. /Maths
  3. /Iteration

124 exam-style questions on Eduqas GCSE Maths Iteration. Each one has a worked solution and a mark scheme showing where the marks go.

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