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Thread: How do i prove a series converges?

  1. April 2nd 2010, 08:02 AM #1
    adam_leeds
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    How do i prove a series converges?

    What method do i use for this?

    sum of 1 to infinity

    (7^n) + n

    thanks
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  2. April 2nd 2010, 08:11 AM #2
    Plato
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    \sum\limits_{n = 1}^\infty {\left( {7^n + n} \right)} diverges.
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  3. April 2nd 2010, 06:35 PM #3
    HallsofIvy
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    You don't. It doesn't converge because 7^n+ n does not go to 0 as n goes to infinity.
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