Show that (3 2 sin x) 2 (3 2 sin x) 2 8 cos 2 x has constant value for all x and state this value ...

We can start by expanding the squares of the two terms on the left si ...

Show that (3 + 2 sin x) 2 + (3 2 sin x) 2 + 8

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Show that (3 + 2 sin x)² + (3 – 2 sin x)² + 8 cos² x has constant value for all x and state this value.

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Cambridge IGCSE And O Level Additional Mathematics Coursebook

ISBN: 9781108411660

2nd Edition

Authors: Sue Pemberton

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Question Posted: Aug 27, 2021 12:57 AM

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Show that (3 + 2 sin x) 2 + (3 2 sin x) 2 + 8

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Cambridge IGCSE And O Level Additional Mathematics Coursebook

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