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Thread: Complex number equation

  1. #1
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    Complex number equation

    The question:
    Verify (-1 + i)^7 = -8(1 + i) both directly and using the polar form.

    I know how to verify this via polar form, but I'm not sure what they mean by verifying it "directly". Does this mean via binomial expansion? Thanks!
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  2. #2
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    Quote Originally Posted by Glitch View Post
    I know how to verify this via polar form, but I'm not sure what they mean by verifying it "directly".
    By directly, I think they mean by expanding the LHS.
    Does this mean via binomial expansion?
    Your guess is as good as mine.
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  3. #3
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    Ok, thanks.
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