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Mathematics 15 Online
OpenStudy (anonymous):

sigma n=1 to infinity of cos(n), how to show it converges or diverges?

OpenStudy (anonymous):

Try the limit test for divergence. What is \[\lim_{n\to\infty}\cos n~?\]

OpenStudy (anonymous):

If it's not zero, it diverges.

OpenStudy (anonymous):

Oh yeah the limit test, thanks, I think I know how to do it now

OpenStudy (anonymous):

yw

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