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Similarities between Hyperbolic and Trignometric Functions :
\(1)
\Both hyperbolic functions and trignometric functions have similar looking identities like :
\(a) Argument addition,
\(b) Double argument,
\(c) Half argument etc.
\(2)
\Both hyperbolic functions and trignometric functions have the derivatives which resemble
\each other.
\(3)
\The inner functions of the derivatives of hyperbolic functions and trignometric functions are
\similar.
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Similarities between hyperbolic and trignometric functions are mentioned.