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Recursion
easy
0:00.0
If
a
n
=
2
a
n
−
1
a_n = 2a_{n-1}
a
n
=
2
a
n
−
1
and
a
3
=
16
a_3 = 16
a
3
=
16
, what is
a
2
a_2
a
2
?
A
8
8
8
B
4
4
4
C
32
32
32
D
16
16
16
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