Prove the given identities. tan(90 + x) = cot x [Explain why Eq. (20.13) cannot be used

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Prove the given identities.

tan(90° + x) = −cot x [Explain why Eq. (20.13) cannot be used for this, but Eqs. (20.9) and (20.10) can be used.]

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Basic Technical Mathematics

ISBN: 9780137529896

12th Edition

Authors: Allyn J. Washington, Richard Evans

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Question Posted: Apr 05, 2023 03:36 AM

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Prove the given identities. tan(90 + x) = cot x [Explain why Eq. (20.13) cannot be used

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Equation 2013 is tan90 x cot90 x This identity is true but it cannot be used to prove the given iden...View the full answer

Basic Technical Mathematics

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