- #1
SpaceDomain
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I am having a difficult time working with some of these infinite series. I studied them in calc 2, but that was a few years ago.
Could someone help me figure out how to find what the following sum converges to:
[tex]
\sum_{n=-N}^N{cos(n \theta)}
[/tex]
Shouldn't there be some property or convergence test I could do to find out what it actually converges to?
Could someone help me figure out how to find what the following sum converges to:
[tex]
\sum_{n=-N}^N{cos(n \theta)}
[/tex]
Shouldn't there be some property or convergence test I could do to find out what it actually converges to?
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