Use the fact that tan 2A sin 2A/cos 2A to derive the formula for tan 2A
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Use the fact that tan 2A ≡ sin 2A/cos 2A to derive the formula for tan 2A in terms of tan A.
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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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