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Geometric Sequences
medium
0:00.0
What is
a
1
a_1
a
1
if
a
2
=
10
a_2=10
a
2
=
10
and
r
=
2
r=2
r
=
2
?
A
5
5
5
B
20
20
20
C
0
0
0
D
1
1
1
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