Show that (1 cosx) 2 (1 cosx) 2 2 sin 2 x has a constant value for all x and state this value ...

Expanding the square terms we get 1 cosx2 1 cosx2 2 sin2x 1 ...

Show that (1 + cosx) 2 + (1 cosx) 2 + 2 sin 2 x has

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Show that (1 + cosx)² + (1 − cosx)² + 2 sin²x has a constant value for all x and state this value.

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Cambridge International AS And A Level Mathematics Pure Mathematics 1 Coursebook

ISBN: 9781108407144

1st Edition

Authors: Sue Pemberton, Julian Gilbey

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Question Posted: Mar 10, 2023 06:36 AM

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Show that (1 + cosx) 2 + (1 cosx) 2 + 2 sin 2 x has

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Expanding the square terms we get 1 cosx2 1 cosx2 2 sin2x 1 ...View the full answer

Cambridge International AS And A Level Mathematics Pure Mathematics 1 Coursebook

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