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Geometric Sequences
easy
0:00.0
What is
r
r
r
for
1
,
−
2
,
4
1, -2, 4
1
,
−
2
,
4
?
A
−
2
-2
−
2
B
2
2
2
C
−
0.5
-0.5
−
0.5
D
1
1
1
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