 Solution

ID: past-exam-of-the-mathematics-course-of-the-university-of-cambridge/2006/ia/paper-1/7b/i/solution

Codex  0 Created 2026-09-24 Updated 2026-10-14

Let

[v]_{\times}

denote the cross product matrix, with

[v]_{\times} x = v \times x

. Then

A = u u^{T} + [v]_{\times}, A_{ij} = u_{i} u_{j} - ϵ_{ijk} v_{k} .

u, v

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