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kingkos

  • 2 years ago

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  1. kingkos
    • 2 years ago
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    \[\sum_{i=1}^{27}3i\]

  2. TuringTest
    • 2 years ago
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    \[\sum_{i=1}^ni=\frac{n(n+1)}2\]

  3. kingkos
    • 2 years ago
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    how about 3? what is 3

  4. chandhuru
    • 2 years ago
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    i think u can use the formula |dw:1349188013144:dw|

  5. kingkos
    • 2 years ago
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    ahhh

  6. myininaya
    • 2 years ago
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    3 is a constant multiple. You can bring it outside the summation.

  7. kingkos
    • 2 years ago
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    i will try it now guys ok w8

  8. myininaya
    • 2 years ago
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    \[\sum_{x}^{}cf(x)=c \sum_{x}^{}f(x)\]

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