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Hyperbolic functions

sinh, cosh and tanh, built from exponentials.

Hyperbolic functions \sinh x = \frac{e^x - e^{-x}}{2}, \quad \cosh x = \frac{e^x + e^{-x}}{2}, \quad \tanh x = \frac{\sinh x}{\cosh x} The hyperbolic functions sinh x, cosh x and tanh x: exponential definitions, graphs, identities, derivatives, integrals and worked examples.

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