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Arithmetic Sequences
medium
0:00.0
Find
d
d
d
if
a
1
=
0
,
a
2
=
1
/
2
a_1=0, a_2=1/2
a
1
=
0
,
a
2
=
1/2
.
A
0.5
0.5
0.5
B
1
1
1
C
0
0
0
D
−
0.5
-0.5
−
0.5
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