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Math Help - complex polar form

  1. #1
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    complex polar form

    z^4 = -1
    Why is z=e^{mi \pi {1 \over 4}} in polar form?
    m is an odd integer
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  2. #2
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    Quote Originally Posted by bigdoggy View Post
    z^4 = -1
    Why is z=e^{mi \pi {1 \over 4}} in polar form?
    m is an odd integer
    Do you know how to express -1 in polar form? Are you familiar with deMoivre's Theorem?
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  3. #3
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    Quote Originally Posted by mr fantastic View Post
    Do you know how to express -1 in polar form? Are you familiar with deMoivre's Theorem?
    Hi

    Thanks...I see it is just an application of De Moivre!
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