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Recurrence Relations
hard
0:00.0
If
A
(
x
)
=
1
1
−
3
x
A(x) = \frac{1}{1-3x}
A
(
x
)
=
1
−
3
x
1
, what is
a
n
a_n
a
n
?
A
3
n
3^n
3
n
B
n
3
n
n3^n
n
3
n
C
3
3
3
D
n
3
n^3
n
3
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