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Complex Numbers
easy
0:00.0
Evaluate
(
3
i
)
2
(3i)^2
(
3
i
)
2
.
A
9
9
9
B
9
i
2
=
−
9
9i^2 = -9
9
i
2
=
−
9
C
9
i
9i
9
i
D
−
9
i
-9i
−
9
i
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