Verify that the derivatives of sinh z and cosh z are as stated in equations (2), Sec.

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Verify that the derivatives of sinh z and cosh z are as stated in equations (2), Sec. 35.
Equation (2)

Because of the way in which the exponential function appears in definitions (1) and in the definitions (Sec. 34)

of sin z and cos z, the hyperbolic sine and cosine functions are closely related to those trigonometric functions:

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Complex Variables and Applications

ISBN: 978-0073051949

8th edition

Authors: James Brown, Ruel Churchill

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Question Posted: Jun 01, 2016 01:40 AM

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Verify that the derivatives of sinh z and cosh z are as stated in equations (2), Sec.

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cos 2i

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Complex Variables and Applications

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