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Mathematics
Problem
Identify the common ratio
r
r
r
of the infinite series
∑
n
=
0
∞
6
(
−
1
4
)
n
.
\displaystyle \sum_{n=0}^{\infty} 6\left(-\tfrac14\right)^{n}.
n
=
0
∑
∞
6
(
−
4
1
)
n
.
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