The hyperbolic cosine and hyperbolic sine functions are defined by a. Show that cosh x is an
Question:
The hyperbolic cosine and hyperbolic sine functions are defined by
a. Show that cosh x is an even function.
b. Show that sinh x is an odd function.
c. Prove that (cosh x)2 - (sinh x)2 = 1.
Transcribed Image Text:
cosh x = et + ex 2 and sinh x = et - ex 2
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