User contributions
- 20:57, 17 August 2025 (diff | hist) . . (-7) . . 2018 Putnam B Problems/Problem 4 (→Solution) (current)
- 20:51, 17 August 2025 (diff | hist) . . (+1,374) . . 2018 Putnam B Problems/Problem 4 (→Solution)
- 18:49, 17 August 2025 (diff | hist) . . (+302) . . N 2018 Putnam B Problems/Problem 4 (Created page with "==Problem== Given a real number <math>a</math>, we define a sequence by <math>x_0 = 1</math>, <math>x_1 = x_2 = a</math>, and <math>x_{n+1} = 2x_nx_{n-1} - x_{n-2}</math> for...")
- 18:48, 17 August 2025 (diff | hist) . . (+243) . . N 2018 Putnam B Problems/Problem 3 (Created page with "==Problem== Find all positive integers <math>n < 10^{100}</math> for which simultaneously <math>n</math> divides <math>2^n</math>, <math>n-1</math> divides <math>2^n - 1</mat...") (current)
- 18:30, 17 August 2025 (diff | hist) . . (+69) . . 2018 Putnam B Problems/Problem 1 (→Solution) (current)
- 18:29, 17 August 2025 (diff | hist) . . (+1,947) . . 2018 Putnam B Problems/Problem 1 (→Solution)
- 18:10, 17 August 2025 (diff | hist) . . (+197) . . N 2018 Putnam B Problems/Problem 2 (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...") (current)
