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Putnam
1977 Putnam
B1
Putnam 1977 B1
Putnam 1977 B1
Source:
April 7, 2022
college contests
Problem Statement
Evaluate the infinite product
∏
n
=
2
∞
n
3
−
1
n
3
+
1
.
\prod_{n=2}^{\infty} \frac{n^3-1}{n^3+1}.
n
=
2
∏
∞
n
3
+
1
n
3
−
1
.
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