Welcome to our community

Be a part of something great, join today!

Find the square roots of 4*sqrt(3)+4(i)

Elissa89

Member
Oct 19, 2017
52
So I have a study guide for my final which was written by a different professor from my actual professor. So I don't understand the question, I don't know if it's because my professor did not teach this or if the wording is different from what I'm used to:

Find the square roots of 4*sqrt(3)+4(i)
 

MarkFL

Administrator
Staff member
Feb 24, 2012
13,734
So I have a study guide for my final which was written by a different professor from my actual professor. So I don't understand the question, I don't know if it's because my professor did not teach this or if the wording is different from what I'm used to:

Find the square roots of 4*sqrt(3)+4(i)
I would let:

\(\displaystyle y=8\left(\frac{\sqrt{3}}{2}+\frac{1}{2}i\right)=8e^{\Large\frac{\pi}{6}i}\)

Can you proceed?
 

Elissa89

Member
Oct 19, 2017
52
I would let:

\(\displaystyle y=8\left(\frac{\sqrt{3}}{2}+\frac{1}{2}i\right)=8e^{\Large\frac{\pi}{6}i}\)

Can you proceed?
No, i don't know what the right side means.

- - - Updated - - -

No, i don't know what the right side means.
Actually I don' know what any of that means. Where did the 8 come from?
 

MarkFL

Administrator
Staff member
Feb 24, 2012
13,734
No, i don't know what the right side means.

- - - Updated - - -


Actually I don' know what any of that means. Where did the 8 come from?
You haven't studied Euler's formula? How about de Moivre's theorem?