today im going to show you how to de moivre's theorum. the formula for this is [z^n=r^n cis n (theta)]. it's really easy bc all you have to do is plug in the exponet the directions give you and then evaluate it .
EX: z= 4 cis 15 use de moivre's theorum to find z^ 3
first you plug in the exponent in the formula
z^3= 4^3 cis 4 15 (degrees)
z^3= 64 cis 60 (degrees)
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