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ID: past-exam-of-the-mathematics-course-of-the-year-1-of-the-natural-sciences-course-of-the-university-of-cambridge/2003/paper-1/5/c/v/solution

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Past exam of the mathematics course of the year 1 of the natural sciences course of the University of Cambridge / 2003 / Paper 1 / 5 / c / v / Solution by Codex 0 Created 2026-10-18 Updated 2026-10-20
A two-sided matrix inverse requires a square matrix, so is necessary. It exists only if that square matrix is also an invertible matrix, equivalently ; choosing the dimension alone does not ensure invertibility.
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