
Complex Analysis Complex Analysis Math Forum 
 LinkBack  Thread Tools  Display Modes 
October 23rd, 2016, 06:22 AM  #1 
Member Joined: Oct 2016 From: Slovenia, Europe Posts: 34 Thanks: 5  I am struggling with a complex equation Hey guys, i have a problem with solving this equation: z^21=z^2 4 and arg(z+2i)= pi/4 I would be very grateful if anyone helps me 
October 23rd, 2016, 01:17 PM  #2 
Global Moderator Joined: May 2007 Posts: 6,136 Thanks: 468 
From $\displaystyle arg(z+2i)=\pi /4$, z=(a+2)+ai (a real), with a+2>0. Substitute into the other equation and solve for a. 

Tags 
complex, equation, struggling 
Thread Tools  
Display Modes  

Similar Threads  
Thread  Thread Starter  Forum  Replies  Last Post 
Struggling with Differentiation...  FishingMad  Calculus  1  April 16th, 2013 09:43 AM 
Struggling to see how this equation simplifies  BigT  Algebra  3  May 11th, 2012 11:08 AM 
struggling with these limits  richoxski  Calculus  7  November 4th, 2010 07:02 AM 
Struggling with a proof  MachineOfLove  Linear Algebra  1  January 20th, 2010 05:29 AM 