f(x) = sin x ln x , x > 0, where x is in radians. a.

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f(x) = sin x − ln x , x > 0, where x is in radians.

a. Show that f(x) = 0 has a root, α, in the interval [2.2, 2.3].

b. By considering a change of sign of f(x) in a suitable interval, verify that α = 2.219 correct to 3 decimal places.

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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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Question Posted: Aug 17, 2023 03:07 AM

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f(x) = sin x ln x , x > 0, where x is in radians. a.

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Pearson Edexcel A Level Mathematics Pure Mathematics Year 2

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