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Geometric Sequences
easy
0:00.0
Find the 3rd term if
a
n
=
5
⋅
3
n
−
1
a_n = 5 \cdot 3^{n-1}
a
n
=
5
⋅
3
n
−
1
.
A
15
B
45
C
75
D
135
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