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Math Help - Simple Summation Problem

  1. #1
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    Simple Summation Problem

    I was marked wrong for this problem, but I think I am right. Can someone help me?

    Evaluate:

    3
    \sum \imath3
    \imath=1

    I came up with 18 for my answer, but like I said, I was marked wrong.
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  2. #2
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    Re: Simple Summation Problem

    Quote Originally Posted by dahiestand View Post
    I was marked wrong for this problem, but I think I am right. Can someone help me?
    Evaluate:
    3
    \sum \imath3
    \imath=1
    I came up with 18 for my answer, but like I said, I was marked wrong.
    1^3+2^3+3^3=~?
    Thanks from dahiestand
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  3. #3
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    Re: Simple Summation Problem

    OK, so that is \imath cubed, not \imath multiplied by 3?
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  4. #4
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    Re: Simple Summation Problem

    The problem looks like this:

    Simple Summation Problem-summation-prob.jpg
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  5. #5
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    Re: Simple Summation Problem

    You should get extra credit because you marked 18 which does not even exist on the answer sheet!
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  6. #6
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    Re: Simple Summation Problem

    Quote Originally Posted by MaxJasper View Post
    You should get extra credit because you marked 18 which does not even exist on the answer sheet!
    Haha! I thought the answer was 18 so I marked "none of the above".
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