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    Complex Numbers Question - Roots of Unity

    Can someone please show me how to do this question from the Cambridge book? a) Use De Moivre's theorem to solve z^5 =-1. [I can do this part; z= -1, cis(+)(-) pi/5, cis(+)(-) (3pi)/5; (+)(-)= plus or minus] This is the part I don't get at all: b) By grouping the roots in complex conjugate...
  2. Y

    Lol at the SC science exam

    Use the following information for questions 38 - 39. A pedigree is a visual representation of the passing on of a set of genes through a family. (or whatever) A dragon is a winged mythical animal. :confused: Did anyone need that last pointer?
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