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Complex Numbers
hard
0:00.0
If
z
n
=
1
z^n = 1
z
n
=
1
, what is the sum of
∣
z
−
1
∣
2
|z-1|^2
∣
z
−
1
∣
2
for all
n
n
n
roots of unity?
A
0
B
n
C
2n
D
n^2
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