f(x) = xe x x + 2 a. Show that the equation f(x) = 0 can

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f(x) = xe−x − x + 2

a. Show that the equation f(x) = 0 can be written asf(x) has a root, α, in the interval −2 < x < −1.

b. Use the iterative formula with x0 = −1 to find, to 2 decimal places, the values of x1, x2 and x3.  

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Pearson Edexcel A Level Mathematics Pure Mathematics Year 2

ISBN: 9781292183404

1st Edition

Authors: Greg Attwood, Jack Barraclough, Ian Bettison, David Goldberg, Alistair Macpherson, Joe Petran

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