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Putnam
1977 Putnam
B1
B1
Part of
1977 Putnam
Problems
(1)
Putnam 1977 B1
Source:
4/7/2022
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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