A) \[128\omega \]
B) \[-128\omega \]
C) \[128{{\omega }^{2}}\]
D) \[-128{{\omega }^{2}}\]
Correct Answer: D
Solution :
\[{{(1+\omega -{{w}^{2}})}^{7}}={{(1+\omega +{{\omega }^{2}}-2{{\omega }^{2}})}^{7}}={{(-2{{\omega }^{2}})}^{7}}\] \[=-128{{\omega }^{14}}=-128{{\omega }^{12}}{{\omega }^{2}}=-128{{\omega }^{2}}\]You need to login to perform this action.
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