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Arithmetic Sequences
easy
0:00.0
In an AP,
a
1
=
1
,
a
n
=
9
,
n
=
5
a_1=1, a_n=9, n=5
a
1
=
1
,
a
n
=
9
,
n
=
5
. What is
d
d
d
?
A
2
2
2
B
4
4
4
C
1
1
1
D
3
3
3
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