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Power Series
hard
0:00.0
Find the sum of
∑
n
=
0
∞
n
+
1
2
n
\sum_{n=0}^{\infty} \frac{n+1}{2^n}
∑
n
=
0
∞
2
n
n
+
1
.
A
1
1
1
B
2
2
2
C
4
4
4
D
3
3
3
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