 Solution

ID: past-exam-of-the-mathematics-course-of-the-university-of-cambridge/2025/ii/paper-1/22i/a/iii/solution

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

The endpoint duals are

(ℓ^{1})^{*} ≅ ℓ^{\infty}, (c_{0})^{*} ≅ ℓ^{1},

under the same coordinate pairing

⟨ x, y ⟩ = \sum_{n} x_{n} y_{n}

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