Hyperbolic Cosine and Its Inverse

Graphed below is the hyperbolic cosine function
cosh(x) = (e^x + e^(-x)) / 2.

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Click the checkbox to show the inverse function arccosh(x).
Exercise: Use the fact that cosh²(x) - sinh²(x) = 1 to find the derivative of arccosh(x).

Jason McCullough, Created with GeoGebra