a Use the expansion of sin (A B) to show that sin( 2 ) cos b Use the expansion of cos (A B) to show that cos( 2 ) sin ...

a. Use the expansion of sin (A B) to show that sin(/2 - ) = cos

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a. Use the expansion of sin (A − B) to show that sin(π/2 - θ) = cos θ.

b. Use the expansion of cos (A − B) to show that cos(π/2 - θ) = sinθ.

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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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Question Posted: Aug 11, 2023 07:12 AM

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a. Use the expansion of sin (A B) to show that sin(/2 - ) = cos

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Pearson Edexcel A Level Mathematics Pure Mathematics Year 2

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