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Recursion
easy
0:00.0
If
a
n
=
(
a
n
−
1
)
2
a_n = (a_{n-1})^2
a
n
=
(
a
n
−
1
)
2
with
a
1
=
2
a_1 = 2
a
1
=
2
, what is
a
3
a_3
a
3
?
A
4
B
8
C
16
D
64
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