Show that (a) sinh(z + i) = sinh z; (b) cosh(z + i) = cosh z; (c)

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Show that
(a) sinh(z + πi) = −sinh z;
(b) cosh(z + πi) = cosh z;
(c) tanh(z + πi) = tanh z.
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Complex Variables and Applications

ISBN: 978-0073051949

8th edition

Authors: James Brown, Ruel Churchill

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