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2018 Putnam B Problems/Problem 2: Revision history

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18 August 2025

17 August 2025

  • curprev 17:1017:10, 17 August 2025 Pinotation talk contribs 197 bytes +197 Created page with "Let \( n \) be a positive integer, and let \( f_n(z) = n + (n-1)z + (n-2)z^2 + \dots + z^{n-1} \). Prove that \( f_n \) has no roots in the closed unit disk \( \{z \in \mathbb..."
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