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Math Help - sequence and series

  1. #1
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    sequence and series

    For each sequence find a number r such that
    has a finite non-zero limit.
    (This is of use, because by the limit comparison test the series and both converge or both diverge.)
    A.
    r =

    B.
    r =

    C.
    r =

    D.
    r =
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  2. #2
    MHF Contributor Mathstud28's Avatar
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    Quote Originally Posted by amiv4 View Post
    For each sequence find a number r such that
    has a finite non-zero limit.
    (This is of use, because by the limit comparison test the series and both converge or both diverge.)
    A.
    r =

    B.
    r =

    C.
    r =

    D.
    r =
    Just take the term in both the denominator and numerator which increases th fastest and eliminate the rest. Try it and well check your work.
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  3. #3
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    Can you show me how to do one cuz I'm still a little confused
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  4. #4
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    Ok i got the first three figured out but I am still having trouble with the last one. Can anyone help with D
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