z^3=-i that gives z= -i Give all roots in the form r*e^eiv
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Originally Posted by kalemale z^3=-i that gives z= -i Give all roots in the form r*e^eiv First of all, , but does...
Anyway, if , then we have
All the roots are evenly spaced about a circle, so have the same radius and are separated by an angle of , so the other angles are and
So the three roots are
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