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Geometric Sequences
hard
0:00.0
Find
a
2
a_2
a
2
if
a
1
=
10
,
r
=
0.5
a_1=10, r=0.5
a
1
=
10
,
r
=
0.5
.
A
5
5
5
B
10
10
10
C
20
20
20
D
None
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