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Could someone tell me what is a hyperbolic trigonometric function?
What is the difference between regular trigonometry and a hyperbolic trigonometry?
Also, why and how to derive and get
##\sinh x = \frac{e^x - e^{-x}}{2}##
?
What is the difference between regular trigonometry and a hyperbolic trigonometry?
Also, why and how to derive and get
##\sinh x = \frac{e^x - e^{-x}}{2}##
?