Use de Moivre's Theorem and the Binomial Theorem to find integers A,B,C,D,E,F such that . Any help much appreciated
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Do you know the statement of De Moivre's theorem? Do you know how to expand ? If so just do it and set ...
So I get I still don't see where I'm supposed to go with it... Is it something to do with matching up the real parts on both sides?
Originally Posted by PTL So I get I still don't see where I'm supposed to go with it... Is it something to do with matching up the real parts on both sides? You forgot my friend! you should get (just alternate ) Then equate the imaginary parts because the real part is which is not what you want.
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