(adsbygoogle = window.adsbygoogle || []).push({}); 1. The problem statement, all variables and given/known data

Hey guys.

I need to develop Taylor series for this function (cos(z) * cosh(z)).

I know the Taylor development for cos and the Taylor development for cosh but I have no idea how to combine the two, if it's possible, any idea guys?

And another thing, does it matters if we are talking about the complex field?

Thanks a lot.

2. Relevant equations

3. The attempt at a solution

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# Homework Help: Taylor development

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