Taylor and Maclaurin Series of cosh(x)

Two methods to finding the Taylor/Maclaurin series of cosh(x) with the radius of convergence.

The first method is the standard approach of finding the Taylor series of any function. The Maclaurin series can then be found by substituting a base of b = 0, and the radius of convergence is determined using the ratio test.

The second method uses the exponential definition of the hyperbolic cosine. Because we know the Maclaurin series of the exponential function very well, this method is much more straightforward.

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Видео Taylor and Maclaurin Series of cosh(x) канала ElectricalMath