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Thread: really dumb question

  1. May 3rd 2010, 07:34 PM #1
    Pengu
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    really dumb question

    hey im really dumb,
    but is
    (e^{i \pi/4})^ 4
    =
    e^{i \pi}
    because
    (e^{i \pi/4})^ 4 = e^{4 i \pi/4} ?
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  2. May 3rd 2010, 07:39 PM #2
    surjective
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    Good question

    Hello,

    Your computation is correct.

    And you are not dumb.

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  3. May 3rd 2010, 11:58 PM #3
    Tikoloshe
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    Congratulations. You have found a fourth root of -1 ( -1=e^{i\pi}). How many others can you find?
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