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Algebra Complex Numbers De Moivre Theorem
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Trigonometry Properties of Triangles
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Eamcet Mathematics
Algebra Complex Numbers De Moivre Theorem
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Q.
A.
0
B.
ω
C.
ω
2
D.
1
E.
None of the above
View Answer
Correct choice: A
Explanation:
(i + ω)
3
- (1 + ω
2
)
3
= (-ω
2
)
3
- (-ω)
3
= -ω
6
+ ω
3
= -ω
3
ω
3
+ ω
3
= -1 + 1 = 0
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