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Geometric Sequences
hard
0:00.0
Find
a
1
a_1
a
1
if
a
100
=
1024
a_{100}=1024
a
100
=
1024
and
r
=
2
r=2
r
=
2
.
A
2
−
89
2^{-89}
2
−
89
B
0
0
0
C
1
1
1
D
None
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