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Numerical Methods

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Question 18

The curve C has the equation y=(15−x)ln⁡xy = (15 - x) \ln xy=(15−x)lnx, x>0x > 0x>0. C has a stationary point at P and dydx=15x−1−ln⁡x\displaystyle \frac{dy}{dx} = \frac{15}{x} - 1 - \ln xdxdy​=x15​−1−lnx

C has a stationary point at P. Show that the x x\,x coordinate of P lies between 5.5 and 5.6

[3]
Markscheme

Numerical Methods Questions

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

321 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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