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Math Help - Division of i thing..

  1. #1
    Junior Member fluffy_penguin's Avatar
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    Exclamation Division of i thing..

    Did I do this right?



    I multiplied both numerator and denominator by 4+2i

    For the numerator I got: 16+8i+8i+4i^2
    = 12+16i

    Now with the denominator I got: 16+8i-8i-4i^2
    = 20
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  2. #2
    Forum Admin topsquark's Avatar
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    Quote Originally Posted by fluffy_penguin View Post
    Did I do this right?



    I multiplied both numerator and denominator by 4+2i

    For the numerator I got: 16+8i+8i+4i^2
    = 12+16i

    Now with the denominator I got: 16+8i-8i-4i^2
    = 20
    So far so good. Now simplify the fractions.

    -Dan
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  3. #3
    Junior Member fluffy_penguin's Avatar
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    So a simplified version is 3/5+4/5i
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