Solve. z to the third power -1=0
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z can be any of three roots of unity: , , and (which correspond to three evenly spaced points on the unit circle).
So is 1/2 the answer?
Originally Posted by derek1008 So is 1/2 the answer? ...
Where did you get 1/2 from? Is (1/2)^3 - 1 really equal to zero?
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