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Math Help - Sigma notation help

  1. #1
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    Sigma notation help

    How do I write:

    7 + 8 + 9 + ... + 137 using notation
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  2. #2
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    This can be done several ways: \sum\limits_{k = 1}^{131} {\left( {6 + k} \right)}  = \sum\limits_{k = 6}^{136} {\left( {1 + k} \right)} .
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  4. #4
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    Hello, Cammie!

    How do I write: . 7 + 8 + 9 + \hdots + 137 using sigma notation?

    How about: . \sum^{137}_{n=7} n

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