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Arithmetic Sequences
hard
0:00.0
If
a
n
a_n
a
n
is an AP with
a
1
=
2
a_1=2
a
1
=
2
and
a
3
=
8
a_3=8
a
3
=
8
, find
a
5
a_5
a
5
.
A
16
B
14
C
12
D
18
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