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Thread: Divergence/convergence

  1. April 27th 2010, 08:51 PM #1
    CalculusCrazed
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    Divergence/convergence

    \sum _{k=1}^{\infty }{\frac {{5}^{k}}{{3}^{k}+{4}^{k}}}

    I'm thinking this is a geometric, but I can't seem to reorder it. Any tips on what I should do?
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  2. April 27th 2010, 09:11 PM #2
    maddas
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    {5^k\over 3^k + 4^k} \ge {5^k\over 4^k+4^k}
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  3. April 27th 2010, 09:21 PM #3
    CalculusCrazed
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    Ahh, thank you! That worked out very nicely.
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