Use the addition formulas for sine and cosine to prove tan(a + b) = cot(a - b)

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Use the addition formulas for sine and cosine to prove

tan(a + b) = cot(a - b) tan a + tan b 1 - tan a tan b cot a cotb + 1 cot b-cot a

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Calculus

ISBN: 9781319055844

4th Edition

Authors: Jon Rogawski, Colin Adams, Robert Franzosa

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Question Posted: Nov 03, 2023 07:27 AM

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Use the addition formulas for sine and cosine to prove tan(a + b) = cot(a - b)

Question:

tan(a + b) = cot(a - b) tan a + tan b 1 - tan a tan b cota cotb + 1 cot b - cot a

Step by Step Answer:

tana b cot a b sina b cosa b cosa b sina b sin a cos b cos a sin b cos a cos b ...View the full answer

Calculus

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