A) 0
B) 1
C) - 1
D) 9
Correct Answer: D
Solution :
\[(1-\omega )(1-{{\omega }^{2}})(1-{{\omega }^{4}})(1-{{\omega }^{8}})\] \[=(1-\omega )(1-{{\omega }^{2}})(1-\omega )(1-{{\omega }^{2}})={{(1-\omega )}^{2}}{{(1-{{\omega }^{2}})}^{2}}\] = \[(-3\omega )(-3{{\omega }^{2}})=9{{\omega }^{3}}=9\].You need to login to perform this action.
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