My Math Forum  

Go Back   My Math Forum > College Math Forum > Complex Analysis

Complex Analysis Complex Analysis Math Forum


Thanks Tree2Thanks
  • 2 Post By mathman
Reply
 
LinkBack Thread Tools Display Modes
October 23rd, 2016, 06:22 AM   #1
Member
 
Joined: Oct 2016
From: Slovenia, Europe

Posts: 46
Thanks: 5

Question I am struggling with a complex equation

Hey guys, i have a problem with solving this equation:
|z^2-1|=|z|^2 -4 and arg(z+2i)= pi/4
I would be very grateful if anyone helps me
srecko is offline  
 
October 23rd, 2016, 01:17 PM   #2
Global Moderator
 
Joined: May 2007

Posts: 6,213
Thanks: 491

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.
Thanks from topsquark and srecko
mathman is offline  
Reply

  My Math Forum > College Math Forum > Complex Analysis

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





Copyright © 2017 My Math Forum. All rights reserved.