Hi, can some one help me please solve that?

Let

compute

So i did:

now i did:

am i right?

I think I have a mistake somewhere...

If not, how can i go from here?

Thanks!!!

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- January 2nd 2011, 05:50 PMNaticomplex calculation
Hi, can some one help me please solve that?

Let

compute

So i did:

now i did:

am i right?

I think I have a mistake somewhere...

If not, how can i go from here?

Thanks!!! - January 2nd 2011, 06:00 PMdwsmith
23Pi/4 can be simplified to 7Pi/4 or -Pi/4

Where do you want to go with it?

- January 2nd 2011, 07:24 PMNati
to

i did not did mistakes? - January 2nd 2011, 07:26 PMdwsmith
It is correct. Is there a certain form you want to represent it in? You can simplify the angle (post #2) but that is about it.

- January 2nd 2011, 07:27 PMdwsmith
- January 2nd 2011, 07:40 PMpickslides
You mean in the form

I get - January 2nd 2011, 08:34 PMNati
- January 2nd 2011, 08:50 PMpickslides
I use De Moivre's theorem

Give it a go! - January 2nd 2011, 08:57 PMSammyS
- January 2nd 2011, 09:25 PMmr fantastic