The complex hyperbolic functions are defined as (a) Write out the formulas for their real and imaginary
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(a) Write out the formulas for their real and imaginary parts in terms of z = x + iy.
(b) Prove that cos i z = cos I z and sin i z = i sinhz.
Transcribed Image Text:
e e-2 , sinh z
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a coshx i y cosh x cos y i sinh ...View the full answer
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