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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
0
=
10
a_0 = 10
a
0
=
10
, what is
a
2
a_2
a
2
?
A
2
B
8
C
6
D
4
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