Complex Numbers, De Moivre

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Complex Numbers, De Moivre

Postby lora » Sat Apr 20, 2013 5:42 pm

De Moivre’s Theorem - IB Mathematics HL

How can we find the following complex number

using De Moivre’s Theorem?


Thanks
lora
 
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Re: Complex Numbers, De Moivre

Postby lily » Sat Apr 20, 2013 6:15 pm

De Moivre’s Theorem - IB Math HL


The De Moivre’s theorem is given by the following formula








Before apply De Moivre’s theorem we must convert the Cartesian form to polar form

So





Therefore,
















Hope these help!!



Hope these help!!
lily
 
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Re: Complex Numbers, De Moivre

Postby lora » Sat Apr 20, 2013 6:16 pm

Thanks Lily!!
lora
 
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