Using known trigonometric identities, prove the following: a sec 0 cosec 0 = 2 cosec 20 e

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Using known trigonometric identities, prove the following:

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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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