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Geometric Sequences
easy
0:00.0
If
a
1
=
1
a_1=1
a
1
=
1
and
a
2
=
3
a_2=3
a
2
=
3
, what is
a
4
a_4
a
4
?
A
9
9
9
B
27
27
27
C
81
81
81
D
12
12
12
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