a Show that 3 cos 2 x sin 2 x 1 2 cos 2x b Hence sketch, for x , the graph of y 3 cos 2 x sin 2 x, showing the coordinates of points where the curve meets the axes ...

a. Show that 3 cos 2 x sin 2 x 1 + 2 cos 2x.

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a. Show that 3 cos² x − sin² x ≡ 1 + 2 cos 2x.

b. Hence sketch, for −π < x < π, the graph of y = 3 cos² x − sin² x, showing the coordinates of points where the curve meets the axes.

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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. Show that 3 cos 2 x sin 2 x 1 + 2 cos 2x.

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a LHS b 31 cos2x 2 1 2 co...View the full answer

Pearson Edexcel A Level Mathematics Pure Mathematics Year 2

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