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Math Help - Vectors, please help.

  1. #1
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    Vectors, please help.

    Hello everyone.
    Can you guys please help me with this simple question
    http://i.imgur.com/U90VR.png
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  2. #2
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    Re: Vectors, please help.

    how do I find AB, because once I find that I can multiply by cis(pi/2) to find AD
    Last edited by XtremePhysX; September 24th 2012 at 12:55 AM.
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  3. #3
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    Re: Vectors, please help.

    BTW, once I get the complex number represented by D, it's very easy to obtain C so can anyone help me in getting D
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  4. #4
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    Re: Vectors, please help.

    never mind, I found it
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