# Homework Help: Help with Taylor Series

1. Dec 2, 2009

### vucollegeguy

1. The problem statement, all variables and given/known data

What function produces the following:
($$\pi$$2/(22)) - ($$\pi$$4/(24*3!)) + ($$\pi$$6/(26*5!)) - ($$\pi$$8/(28*7!))

I'm sure this is a sin function.
But I can't figure out what exactly is the function.

2. Dec 2, 2009

### clamtrox

That can be written as

$$\pi/2[\pi/2 - (\pi/2)^3/3! + (\pi/2)^5/5! + ...]$$

3. Dec 2, 2009