I'm trying to get the 4 solutions for this:

In cis form and after applying de Moivre's theorem I get:

Where k is varying integer.

I've checked several times and I can't see where I'm wrong.

Help appreciated!

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- Sep 24th 2011, 10:24 AMeliehcomplex number equation
I'm trying to get the 4 solutions for this:

In cis form and after applying de Moivre's theorem I get:

Where k is varying integer.

I've checked several times and I can't see where I'm wrong.

Help appreciated! - Sep 24th 2011, 10:42 AMPlatoRe: complex number equation
- Sep 24th 2011, 10:56 AMeliehRe: complex number equation
Sorry! my bad,

I edited it - Sep 24th 2011, 11:01 AMPlatoRe: complex number equation
- Sep 24th 2011, 11:12 AMeliehRe: complex number equation
But I don't get whole numbers to put in my answer which should be in the form a+bi

- Sep 24th 2011, 11:43 AMPlatoRe: complex number equation
- Sep 24th 2011, 12:01 PMeliehRe: complex number equation
That works, Thanks.