a. Using the same axes, sketch the graphs of y = e x and y = x
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a. Using the same axes, sketch the graphs of y = e−x and y = x2.
b. Explain why the function f(x) = e−x − x2 has only one root.
c. Show that the function f(x) = e−x − x2 has a root between x = 0.70 and x = 0.71.
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Related Book For
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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