 Solution

ID: past-exam-of-the-mathematics-course-of-the-university-of-cambridge/2023/ii/paper-1/31j/a/solution

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

C \subseteq R^{d}

is convex when every line segment between two of its points remains in the set: for every

x, y \in C

and

0 \leq t \leq 1

t x + (1 - t) y \in C .

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