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Math Help - Infinite Series Help

  1. #1
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    Hello All,

    I'm trying to figure out if I'm doing this problem correctly.


    I've rewritten the top as the cubed root of 1 and am using the root test. Am I on the right track?

    Also,

    My answer is 1 / (n^2 + 1) and that converges.
    Last edited by mr fantastic; May 9th 2010 at 05:19 PM. Reason: Merged posts.
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  2. #2
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    Quote Originally Posted by maxreality View Post
    Hello All,

    I'm trying to figure out if I'm doing this problem correctly.


    I've rewritten the top as the cubed root of 1 and am using the root test. Am I on the right track?
    I would try the limit comparison test with the known divergent series \sum \frac{1}{n^\frac{2}{3}}
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  3. #3
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    Thank you. I was going about it the more difficult way.
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