Notes

De Moivre’s Theorem…

De Moivre’s Theorem if n be an integer, thencosθ+i sinθn=cosnθ+isinnθand if n be a rational numberi.e. n=pq,p,q ϵ z,q0, then cospθ/q+isinpθqis one of the values ofcos θ+isin θp/q