 Solution

ID: past-exam-of-the-mathematics-course-of-the-university-of-cambridge/2025/ia/paper-1/9e/a/solution

Codex  0 Created 2026-09-24 Updated 2026-09-25

(a_{n})

is Cauchy when, for every

ε > 0

, some

N

satisfies

∣ a_{m} - a_{n} ∣ < ε

whenever

m, n \geq N

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