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Math Help - summation notation

  1. #1
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    summation notation

    How would I go about writing 1/2-1/3+1/4-1/5+1/6 in summation notation?
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  2. #2
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    Quote Originally Posted by LovesMeTrike View Post
    How would I go about writing 1/2-1/3+1/4-1/5+1/6 in summation notation?

    \sum_{n=2}^6 \frac{(-1)^n}{n}

    The (-1)^n term gives the alternating signs.
    Last edited by pomp; October 1st 2009 at 07:24 AM. Reason: latex
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