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Geometric Sequences
easy
0:00.0
If
a
1
=
4
a_1 = 4
a
1
=
4
and
r
=
0.5
r = 0.5
r
=
0.5
, what is
a
3
a_3
a
3
?
A
1
B
2
C
0.5
D
0
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