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Math Help - Complex number question

  1. #1
    Newbie
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    Dec 2008
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    Exclamation Complex number question

    Right so the question i need help with is as follows

    Solve the following equation for the complex number z.

    z = 2+3i
    z+1

    Given your answer in its simplest form

    plz help
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  2. #2
    MHF Contributor
    Joined
    Nov 2008
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    France
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    Hi

    \frac{z}{z+1} = 2+3i

    z = (2+3i)z + (2+3i)

    (1+3i)z =  - (2+3i)

    z = \frac{-2-3i}{1+3i}

    z = \frac{-2-3i}{1+3i} \;\;\frac{1-3i}{1-3i}

    z = \frac{-11+3i}{10}
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  3. #3
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    Dec 2008
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    thanx

    thanx man real helpful
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