Question

8. If w is complex cube root of unity then w30 is..​

Answer 1

Answer:

The answer is 1

Step-by-step explanation:

Concept : If $\omega$ is complex cube root of unity, then $\omega^3=1$

Therefore $\omega^{30}=(\omega^3)^{10}$, since $a^{mn}=(a^m)^n$

                       $=(1)^{10}=1$, using property $\omega^3=1$