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Mathematics 9 Online
OpenStudy (anonymous):

help ?find the product of the complex number and its conjugate -4+5i

OpenStudy (kainui):

The complex conjugate is what you get when you change the sign on all the i's. So for example if I give you this complex number: \[\LARGE 3+7i-x^{2i}\] then the complex conjugate is just \[\LARGE 3-7i-x^{-2i}\]

OpenStudy (triciaal):

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