use deMoivre's theormen to find the indicated power of the complex number:
2(sqrt3 +2i)^4
what do I do with the 2 in front??
without 2 in front:
r=sqrt(3+4) = sqrt7
tan-1 (2/sqrt3) = 49.1
(sqrt7)^4 (cos(4*49.1) + i (sin(4*49.1)) )
what do I do with the 2????
The Purplemath Forums
Helping students gain understanding and self-confidence in algebra.
powers of complex numbers 
2 posts
• Page 1 of 1
powers of complex numbers
by arletebacon on Tue Oct 11, 2011 2:07 am
- arletebacon
- Posts: 5
- Joined: Thu Oct 06, 2011 4:30 am
by stapel_eliz on Tue Oct 11, 2011 11:25 am
arletebacon wrote:what do I do with the 2????
Multiply the complex number by it.
-
stapel_eliz - Posts: 1711
- Joined: Mon Dec 08, 2008 4:22 pm
2 posts
• Page 1 of 1