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Recurrence Relations
easy
0:00.0
Which value is
a
2
a_2
a
2
for
a
n
=
n
a
n
−
1
a_n = n a_{n-1}
a
n
=
n
a
n
−
1
with
a
0
=
1
a_0 = 1
a
0
=
1
?
A
1
1
1
B
2
2
2
C
3
3
3
D
4
4
4
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