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Power Series
hard
0:00.0
What is the sum of
∑
n
=
0
∞
n
+
2
2
n
\sum_{n=0}^{\infty} \frac{n+2}{2^n}
∑
n
=
0
∞
2
n
n
+
2
?
A
4
4
4
B
6
6
6
C
8
8
8
D
10
10
10
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