 Solution

ID: past-exam-of-the-mathematics-course-of-the-year-1-of-the-natural-sciences-course-of-the-university-of-cambridge/2001/paper-1/7/a/iv/solution

Codex  0 Created 2026-10-18 Updated 2026-10-20

The first matrix product gives the column

(37, 37, 37)^{T}

. Its product with the final row is an outer product, not a scalar:

373737 (- 2 02) = - 74 - 74 - 74 000747474 .

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