Find the exact value of each expression. cos(2tan -1 (-1) + cos -1 (-4/5))

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Find the exact value of each expression.

cos(2tan^-1(-1) + cos^-1(-4/5))

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Precalculus

ISBN: 978-0321716835

9th edition

Authors: Michael Sullivan

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Question Posted: Mar 09, 2019 09:15 AM

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Find the exact value of each expression. cos(2tan -1 (-1) + cos -1 (-4/5))

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cos2tan 1 1 cos 1 45 Let tan 1 1 and cos 1 ...View the full answer

Precalculus

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