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Numerical Methods

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Question 95

The curve C with the equation y=exy = e^xy=ex meets the line L with equation y=x+1y = x + 1y=x+1 at the point P.

a.

Show that the x x\,x coordinate of P satisfies x=ln⁡(x+1)x = \ln(x + 1)x=ln(x+1)

[2]
b.

Use the iteration formula xn+1=ln⁡(xn+1)x_{n+1} = \ln(x_n + 1)xn+1​=ln(xn​+1) with x0=2.5x_0 = 2.5x0​=2.5 to find, to 3 decimal places, the values of x1x_1x1​, x2 x_2\,x2​ and x3x_3x3​.

[3]
Markscheme

Numerical Methods Questions

  1. A Level
  2. /Maths
  3. /Numerical Methods

329 exam-style questions on Edexcel A Level Maths Numerical Methods, covering 10.1 Locating Roots, 10.2 Iteration, 10.3 The Newton-Raphson Method, and 10.4 Applications to Modelling. Each one has a worked solution and a mark scheme showing where the marks go.

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