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Recursion
easy
0:00.0
Solve
a
n
=
a
n
−
1
+
3
a_n = a_{n-1} + 3
a
n
=
a
n
−
1
+
3
with
a
1
=
2
a_1 = 2
a
1
=
2
. What is
a
3
a_3
a
3
?
A
11
B
5
C
7
D
8
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