SOLUTION: Find the complex conjugate of (3+5i)/(1+2i)

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Question 1000351: Find the complex conjugate of (3+5i)/(1+2i)
Answer by josgarithmetic(39613) About Me  (Show Source):
You can put this solution on YOUR website!
One could guess it would be %283-5i%29%2F%281%2B2i%29.



Starting from the given number,
%28%283%2B5i%29%2F%281%2B2i%29%29%28%281-2i%29%2F%281-2i%29%29

%28%283%2B5i%29%281-2i%29%29%2F%281-4i%5E2%29

%283-10i%5E2-i%29%2F5

%283%2B10-i%29%2F5

highlight_green%28%2813-i%29%2F5%29------the original complex number in simplified form, mostly.

Its conjugate is highlight%28%2813%2Bi%29%2F5%29.