Establish identity. cos 2 (2u) - sin 2 (2u) = cos(4u)

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Establish identity.

cos²(2u) - sin² (2u) = cos(4u)

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Precalculus

ISBN: 978-0321716835

9th edition

Authors: Michael Sullivan

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Question Posted: Mar 09, 2019 08:16 AM

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Establish identity. cos 2 (2u) - sin 2 (2u) = cos(4u)

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Precalculus

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