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Complex Numbers
medium
0:00.0
If
∣
z
∣
=
3
|z| = 3
∣
z
∣
=
3
, what is
∣
4
z
∣
|4z|
∣4
z
∣
?
A
12
12
12
B
7
7
7
C
1
1
1
D
3
/
4
3/4
3/4
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