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anonymous

  • one year ago

Which of the following sums does not equal the others?

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  1. anonymous
    • one year ago
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    https://gyazo.com/10a3396431bbd8bb38bf022ce7c5a933 Looking for some explanations not just answer. Appreciate it.

  2. e.mccormick
    • one year ago
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    Well first, do you understand the summation notation?

  3. anonymous
    • one year ago
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    Yes, I have already taken pre-calc along with AP Calc......just looking for some help to jog my memory.

  4. e.mccormick
    • one year ago
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    Did you try solving the sums? They are not very hard ones.

  5. anonymous
    • one year ago
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    Nah, gonna go do it right now....I remember a shortcut for this though other than solving each one.

  6. e.mccormick
    • one year ago
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    Well, there are some rules where you can transform sums. Sort of templates.

  7. e.mccormick
    • one year ago
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    It is just that with such small sum sets, I am not sure if it would make much difference.

  8. e.mccormick
    • one year ago
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    And this PDF has some nice details and examples: http://www.mathcentre.ac.uk/resources/workbooks/mathcentre/sigma.pdf

  9. anonymous
    • one year ago
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    That's exactly what I was looking for, thanks. Anyways my answer was B.

  10. anonymous
    • one year ago
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    @e.mccormick Let me know if it is wrong by any chance.

  11. e.mccormick
    • one year ago
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    Yah, the others are 14.

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