My Calculus teacher posed this question to a recent class, and asked us (previous students) if we could figure it out(just for fun). I am stumped. The question is to find the general formula that represents the infinite series (1, -1, -1, 1,-1, -1, 1....) I am assuming it uses trig graphs, maybe something like sinx + cos2x... but even that doesn't really work. any ideas would be appreciated. thanks(adsbygoogle = window.adsbygoogle || []).push({});

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# Homework Help: Infinite Series help

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