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Need help with polarcoordinates please!

  1. Sep 27, 2011 #1
    Hello, first of all lovely forums you have here. I would love to get some help with this task please.

    Task:

    In this exercise is z = -2 + 2i√3.

    a) Find the polar coordinates of z.
    b) Find z^22 and enter the number of the form a + ib


    Thank you,

    Greetings
     
  2. jcsd
  3. Sep 27, 2011 #2

    SammyS

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    Welcome to PH Forums.

    Please show what you have tried and where you are stuck so that we can help you.
     
  4. Sep 27, 2011 #3
    polar form of a complex number is

    [tex]z=re^{i \theta}[/tex]

    so you have to convert your number in this form. To do it, use Euler's formula

    http://en.wikipedia.org/wiki/Euler's_formula
     
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