My Math Forum  

Go Back   My Math Forum > High School Math Forum > Algebra

Algebra Pre-Algebra and Basic Algebra Math Forum


Reply
 
LinkBack Thread Tools Display Modes
October 17th, 2011, 02:20 AM   #1
Senior Member
 
Joined: Sep 2011

Posts: 140
Thanks: 0

complex number

Okay I have a question, well actually I solved it, but I don't know if it's correct. It would be great if you guys could correct my mistakes if any are made, Thank you.

So we have two complex numbers, and

the modulus of is and the modulus of

the argument of and the argument of

hence find the smallest positive integer m,n for

since 0 is an integer, the smallest m and n is 0.
gaussrelatz is offline  
 
October 17th, 2011, 03:50 AM   #2
Global Moderator
 
Joined: Dec 2006

Posts: 18,245
Thanks: 1439

Zero isn't a positive integer. You seem to have "i" missing from the definition of
skipjack is online now  
October 17th, 2011, 03:57 AM   #3
Senior Member
 
Joined: Sep 2011

Posts: 140
Thanks: 0

Re: complex number

but argument and modulus is correct right?
gaussrelatz is offline  
October 17th, 2011, 04:14 PM   #4
Global Moderator
 
Joined: Dec 2006

Posts: 18,245
Thanks: 1439

Without knowing the correct version of the problem, it's impossible to tell.
skipjack is online now  
October 18th, 2011, 06:09 AM   #5
Senior Member
 
Joined: Sep 2011

Posts: 140
Thanks: 0

Re: complex number

Yea, I made a typo, there is an i in the .

So having that said, is the mod and arg correct? Also, what would be m and n?
gaussrelatz is offline  
October 18th, 2011, 06:38 AM   #6
Global Moderator
 
Joined: Dec 2006

Posts: 18,245
Thanks: 1439

Where is the i in the ?
skipjack is online now  
October 18th, 2011, 06:45 AM   #7
Senior Member
 
Joined: Sep 2011

Posts: 140
Thanks: 0

Re: complex number

square root 3
gaussrelatz is offline  
October 18th, 2011, 07:37 AM   #8
Global Moderator
 
Joined: Dec 2006

Posts: 18,245
Thanks: 1439

Re: complex number

You found the modulus of each number correctly. For equality, m = n/2.

The arguments were nearly right. If the complex numbers are equal, m needs to be a multiple of 3. What else is needed?
skipjack is online now  
Reply

  My Math Forum > High School Math Forum > Algebra

Tags
complex, number



Thread Tools
Display Modes


Similar Threads
Thread Thread Starter Forum Replies Last Post
Help plz: Complex Number justusphung Algebra 10 May 22nd, 2013 07:20 AM
Complex number. (Least value) Punch Complex Analysis 1 April 1st, 2012 10:01 AM
complex number panky Algebra 4 November 14th, 2011 11:15 PM
complex number Number Theory 3 January 20th, 2011 06:15 AM
Finding real number in complex number TsAmE Complex Analysis 1 October 18th, 2010 05:38 PM





Copyright © 2017 My Math Forum. All rights reserved.