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  1. Thread: 1=0.

    by vart
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    6,558

    yes it is - you have sum_0^x 1 so the...

    yes it is - you have


    sum_0^x 1


    so the upper bound of sum depends on x, and as such should be taken in the account when appliyng differential on x
  2. Thread: 1=0.

    by vart
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    61
    Views
    6,558

    you forgot to d/dx of the (x times) part

    you forgot to d/dx of the (x times) part
  3. Thread: 1=0.

    by vart
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    61
    Views
    6,558

    sqrt(-1) = +i and sqrt(-1) = -i as well

    sqrt(-1) = +i
    and
    sqrt(-1) = -i
    as well
  4. Thread: 1=0.

    by vart
    Replies
    61
    Views
    6,558

    When you get to this step: you get to the...

    When you get to this step:

    you get to the complex numbers - talking about complex numbers - you have 2 possibilities for the expression instead of one
    you choose the wrong one to preserve the...
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