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

I seem to have forgotten how to express a series as a function. I took calc 2 over the summer so we rushed through everything and i don't think all that information got a chance to settle. So here is the question. I'm going to try using syntax but i will write it out as well as this is the first time i use syntax.

If

[tex]\sum \frac{x^{2n}}{n!}[/tex] = f(x) , then express f in terms of standard functions.

sum (n=0 to infinity) of (x^(2n)) / (n!)

2. Relevant equations

3. The attempt at a solution

No attempt, i don't even know where to start.

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# Homework Help: Expressing a series as a function

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