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Math Help - Geometric complex numbers

  1. #1
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    Geometric complex numbers

    Describe geometrically the sets of points z in C defined by:

    Re(az + b) > 0 where a,b are elements in C (Complex set)

    I know how to do it if a,b were real numbers but in this case, it they were not. What can I do?

    Many thanks
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  2. #2
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    Here is a hint to get you started.
    \Re e (az) = \Re e(a)x - \Im m(a)y
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