Show how identities (6) and (8) in Sec. 35 follow from identities (9) and (6), respectively, in
Question:
(6) cosh2 z − sinh2 z = 1,
(8) cosh(z1 + z2) = cosh z1 cosh z2 + sinh z1 sinh z2
(6) cosh2 z − sinh2 z = 1,
(9) sinh z = sinh x cos y + i cosh x sin y,
Fantastic news! We've Found the answer you've been seeking!
Step by Step Answer:
Related Book For
Complex Variables and Applications
ISBN: 978-0073051949
8th edition
Authors: James Brown, Ruel Churchill
Question Posted: