i. Show that (2 sin x + cos x) 2 can be written in the form ii.
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i. Show that (2 sin x + cos x)2 can be written in the form
ii. Hence find the exact value of
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5 2 +2 sin 2.x - - 3 2 cos2.x.
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Related Book For
Cambridge International AS & A Level Mathematics Pure Mathematics 2 & 3 Coursebook
ISBN: 9781108407199
1st Edition
Authors: Sue Pemberton, Julianne Hughes, Julian Gilbey
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