2000002109 | math4u.vsb.cz

SubArea:

Powers and roots of complex numbers

Level:

Project ID:

2000002109

Accepted:

0

Clonable:

0

Easy:

1

Given

z = \sqrt[3]{3} (\cos \frac{3 π}{4} + i \sin \frac{3 π}{4})

, determine which of the numbers below does not represent

z^{6}

.

9

9 i

9 (\cos \frac{9 π}{2} + i \sin \frac{9 π}{2})

9 (\cos \frac{π}{2} + i \sin \frac{π}{2})