a. Show that b. Hence find cos 4 x dx. 1 3 costx = cos 4x +

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a. Show that

b. Hence find ∫cos4 x dx.

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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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