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Geometric Sequences
easy
0:00.0
If
a
n
=
5
⋅
2
n
−
1
a_n = 5 \cdot 2^{n-1}
a
n
=
5
⋅
2
n
−
1
, what is the first term?
A
5
5
5
B
2
2
2
C
10
10
10
D
1
1
1
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