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December 14th, 2012, 09:22 AM  #1 
Newbie Joined: Dec 2012 Posts: 28 Thanks: 0  Complex numbers
Help about complex number (attachment)

December 14th, 2012, 11:41 AM  #2 
Math Team Joined: Nov 2010 From: Greece, Thessaloniki Posts: 1,990 Thanks: 133 Math Focus: pre pre pre pre pre pre pre pre pre pre pre pre calculus  Re: Complex numbers [color=#000000]From the identity , .[/color] 
December 14th, 2012, 12:48 PM  #3  
Global Moderator Joined: May 2007 Posts: 6,805 Thanks: 716  Re: Complex numbers Quote:
 
December 14th, 2012, 08:48 PM  #4 
Newbie Joined: Dec 2012 Posts: 28 Thanks: 0  Re: Complex numbers
Thank you ! But can you do it step by step, how did you get 1?

December 15th, 2012, 11:58 AM  #5  
Global Moderator Joined: May 2007 Posts: 6,805 Thanks: 716  Re: Complex numbers Quote:
 

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