A) 0
B) \[\omega \]
C) \[{{\omega }^{2}}\]
D) None of these
Correct Answer: A
Solution :
\[{{(1+\omega )}^{3}}-{{(1+{{\omega }^{2}})}^{3}}={{(-{{\omega }^{2}})}^{3}}-{{(-\omega )}^{3}}\] \[=-{{\omega }^{6}}+{{\omega }^{3}}=-{{\omega }^{3}}{{\omega }^{3}}+{{\omega }^{3}}=-1+1=0\]You need to login to perform this action.
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