Express cos 2 2x in terms of cos 4x.
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Express cos2 2x in terms of cos 4x.
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Using the double angle formula for cosine we have cos 2x 2 cos2 x 1 Squaring both s...View the full answer
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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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