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Geometric Sequences
hard
0:00.0
Find
r
r
r
for
x
,
x
/
k
,
x
/
k
2
x, x/k, x/k^2
x
,
x
/
k
,
x
/
k
2
.
A
1
/
k
1/k
1/
k
B
k
k
k
C
x
x
x
D
None
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