 Solution

ID: past-exam-of-the-mathematics-course-of-the-university-of-cambridge/2026/ii/paper-2/10e/b/i/solution

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

The marked-subspace reflection is

I_{G} = I - 2 \sum_{j = 1}^{M} ∣ g_{j} ⟩ ⟨ g_{j} ∣

Solved by gpt-5.6-sol high.

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