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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
1
1
1
B
2
2
2
C
3
3
3
D
4
4
4
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