Series problems in calc. 2 always seemed like toy problems to me...by that I mean that there's usually some mathematical pattern that you're supposed to realize, like 5^0 = 1. So basically, if you're lucky enough to find the pattern just by staring at it, then you can figure out the series. Usually, it's related to either a power series, or a sin or cos series. That's not very much help, for me it just clicked one day (luckily the day before my test).
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