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3
2000 Advanced Topics #3: Infinite Summation
2000 Advanced Topics #3: Infinite Summation
Source:
June 21, 2012
Problem Statement
Evaluate
∑
n
=
1
∞
1
n
2
+
2
n
\displaystyle\sum_{n=1}^\infty \dfrac{1}{n^2+2n}
n
=
1
∑
∞
n
2
+
2
n
1
.
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