SOLUTION: (a) The complex conjugate of 5 + 3i is 5 + 3i = (b) (5 + 3i)(5 + 3i)=

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Question 1189684: (a) The complex conjugate of 5 + 3i is 5 + 3i =

(b) (5 + 3i)(5 + 3i)=
Answer by ikleyn(52797) About Me  (Show Source):
You can put this solution on YOUR website!
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(a)  = 5 -3i.


(b)  = 5*5 +2*5*3i- 9i^2 = 25 + 30i + 9 = 34 + 30i.

On complex numbers, read my introductory lessons
    - Complex numbers and arithmetical operations on them
    - Complex plane
    - Addition and subtraction of complex numbers in complex plane
    - Multiplication and division of complex numbers in complex plane
in this site.