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duckiness
 2 years ago
Does the series cos n /(n^3) converge or diverge?
duckiness
 2 years ago
Does the series cos n /(n^3) converge or diverge?

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duckiness
 2 years ago
Best ResponseYou've already chosen the best response.0what test would you use to prove it?

modphysnoob
 2 years ago
Best ResponseYou've already chosen the best response.2I am assuming it is from 1 to infinity

xkylex
 2 years ago
Best ResponseYou've already chosen the best response.1Yes, it would be converge

duckiness
 2 years ago
Best ResponseYou've already chosen the best response.0yep! I just don't know how to prove it with a test

modphysnoob
 2 years ago
Best ResponseYou've already chosen the best response.2start with just 1/n^3

duckiness
 2 years ago
Best ResponseYou've already chosen the best response.0could you use the comparison test?

modphysnoob
 2 years ago
Best ResponseYou've already chosen the best response.2yes, 1/n^3 always converge

xkylex
 2 years ago
Best ResponseYou've already chosen the best response.1It 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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