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Does the series cos n /(n^3) converge or diverge?

Mathematics
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n^3 would converge
what test would you use to prove it?
p test

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Other answers:

I am assuming it is from 1 to infinity
Yes, it would be converge
yep! I just don't know how to prove it with a test
http://mathforum.org/library/drmath/view/74703.html
start with just 1/n^3
could you use the comparison test?
yes, 1/n^3 always converge
cos (x)<1
It does not require a paragraph of an explanation, you could either use the link I showed you for an example as they do some hardcore calculating or you can follow what modphysnoob is doing.

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