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Complex Numbers
hard
0:00.0
If
ω
\omega
ω
is a cube root of unity, what is
1
+
ω
+
ω
2
1+\omega+\omega^2
1
+
ω
+
ω
2
?
A
1
1
1
B
−
1
-1
−
1
C
0
0
0
D
3
3
3
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