Show that each of these functions has at least one root in the given interval. a. f(x)

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Show that each of these functions has at least one root in the given interval. 

a. f(x) = x3 − x + 5, −2 < x < −1

b. f(x ) = x− √x − 10, 3 < x < 4

c. f(x) = x3 − 1/x − 2, −0.5 < x < −0.2  

d. f(x) = ex − ln x − 5, 1.65 < x < 1.75

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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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