Complex number help

  • Thread starter Wardlaw
  • Start date
  • #1
27
0
Complex number help!!!

Homework Statement



Find the modulus and principle argument of 1/(-sqrt(3)+i)

Homework Equations





The Attempt at a Solution



I attempted this solution by using the complex conjugate, and as i^2=-1, i eventually ended up with 4 in the denominator. Any suggestions?

Homework Statement





Homework Equations





The Attempt at a Solution

 

Answers and Replies

  • #2
5,588
208


[tex](-\sqrt{3}+j)(-\sqrt{3}-j)=3-1=2[/tex]

So you should get [tex]\frac{-\sqrt{3}-j}{2}[/tex]
 
  • #3
AEM
360
0


Before you make use of the previous post, multiply numerator and denominator by the complex conjugate of the denominator. Then make use of Yungman's post. From there it's a standard manipulation.
 

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