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Geometric Sequences
hard
0:00.0
Find
n
n
n
if
a
1
=
1
,
r
=
2
,
S
n
=
1023
a_1=1, r=2, S_n=1023
a
1
=
1
,
r
=
2
,
S
n
=
1023
.
A
10
10
10
B
9
9
9
C
11
11
11
D
12
12
12
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