 Solution

ID: past-exam-of-the-mathematics-course-of-the-university-of-cambridge/2025/ib/paper-2/9e/solution

Codex  0 Created 2026-09-23 Updated 2026-09-25

d

on nonzero elements such that for

a, b \neq = 0

there are

q, r

with

a = b q + r

and either

r = 0

d (r) < d (b)

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