olymmath

Putnam 1988 A3

  • Session A

Determine, with proof, the set of real numbers xx for which ∑n=1∞(1ncsc⁡1n−1)x\sum_{n=1}^\infty \left( \frac{1}{n} \csc \frac{1}{n} - 1 \right)^x converges.

Curated text Kedlaya Putnam archive. Quoted with source.

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