Quantcast Quadratic Equation - XP Math - Forums
XP Math Home Sign Up FREE! | Sign In | Classroom Setup | Common Core Alignment PDF Version

Go Back   XP Math - Forums > Welcome > Off-Topic Discussion

Thread Tools Display Modes
Old 08-08-2007   #1
Posts: n/a
Default Quadratic Equation


How to find the 4th roots of unity?

Old 08-08-2007   #2

Join Date: Oct 2006
Posts: 822

We know that there are n nth roots of unity; in this case, n=4, so we can just find 4 roots of unity and we're done.
Not that connecting evenly spaced roots of unity on a unit circle forms a polygon with n sides. In the case of n=4, its like a square turned to look like a diamond (rhombus). Its pretty easy to find that the 4th roots of unity are 1, -1, i, and -i. Atleast I think...

Last edited by Sillysidley; 08-08-2007 at 07:59 PM..
Sillysidley is offline  

Thread Tools
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off

Forum Jump

All times are GMT -4. The time now is 04:01 AM.

Powered by vBulletin® Version 3.8.11
Copyright ©2000 - 2020, vBulletin Solutions Inc.
XP Math