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Geometric Sequences
hard
0:00.0
What is
a
1
a_1
a
1
if
a
3
=
1
a_3=1
a
3
=
1
and
r
=
1
r=1
r
=
1
?
A
1
1
1
B
3
3
3
C
0
0
0
D
None
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