Question 440245
<pre><font face = "consolas" color = "indigo" size = 4><b>
If w = 9 - 4i then: 
                                                
a. Find the complex conjugate of w, denoted by <span style="text-decoration: overline">w</span>  

Just change the sign of the term with "i".  So

<span style="text-decoration: overline">w</span> = 9 + 4i



b. Find 

 w + <span style="text-decoration: overline">w</span>
———————
   2

Substituting:

 (9 + 4i) + (9 - 4i)
—————————————————————  =
         2


      9 + 4i + 9 - 4i
     ————————————————— =
             2


                   18   
                  ———— =
                    2


                    9

Edwin</pre>