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Math Help - :)

  1. #1
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    :)

    what is a in ?
    tips what i shall do, i cant get any ide atm
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  2. #2
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    Re: :)

    Quote Originally Posted by Petrus View Post
    what is a in ?
    tips what i shall do, i cant get any ide atm
    \frac{12-3i}{a+i}=\frac{(12-3i)(a-i)}{a^2+1}
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