 Solution

ID: past-exam-of-the-mathematics-course-of-the-university-of-cambridge/2024/ib/paper-2/15a/iii/solution

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

Differentiating

⟨ O ⟩ = ⟨ ψ ∣ O ∣ ψ ⟩

\frac{d}{d t} ⟨ O ⟩ = \frac{1}{i ℏ} ⟨[O, H]⟩ + ⟨ \frac{\partial O}{\partial t} ⟩ .

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