If cos(A B) = 3cos(A + B), find the exact value of tan A tan B.

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If cos(A − B) = 3cos(A + B), find the exact value of tan A tan B.

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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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Question Posted: Mar 14, 2023 07:17 AM

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If cos(A B) = 3cos(A + B), find the exact value of tan A tan B.

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We can start by using the cosine subtraction formula cosA B cosA cosB sinA sinB cos...View the full answer

Cambridge International AS & A Level Mathematics Pure Mathematics 2 & 3 Coursebook

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