The minor of a particular element of a matrix is found by eliminating the row and column of that element and finding the determinant of the remaining matrix.
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Glossary
matrix
a rectangular or square grid of numbers.
minor
of an element of a matrix found be eliminating the row and column containing that element and finding the determinant of the remaining matrix.
union
The union of two sets A and B is the set containing all the elements of A and B.
This question appears in the following syllabi:
| Syllabus | Module | Section | Topic | Exam Year |
|---|---|---|---|---|
| AQA A-Level (UK - Pre-2017) | FP4 | Matrix algebra | 3x3 matrices | - |
| AQA A2 Further Maths 2017 | Pure Maths | Further Matrices | 3x3 Matrices | - |
| AQA AS/A2 Further Maths 2017 | Pure Maths | Further Matrices | 3x3 Matrices | - |
| CBSE XII (India) | Algebra | Determinants | Determinant of a square matrix (up to 3 x 3) | - |
| CCEA A-Level (NI) | FP1 | Matrix algebra | 3x3 matrices | - |
| Edexcel A-Level (UK - Pre-2017) | FP3 | Matrix algebra | 3x3 matrices | - |
| Edexcel AS Further Maths 2017 | Core Pure Maths | Matrices | 3x3 Matrices | - |
| Edexcel AS/A2 Further Maths 2017 | Core Pure Maths | Matrices | 3x3 Matrices | - |
| Methods (UK) | M5 | Matrix algebra | 3x3 matrices | - |
| OCR A-Level (UK - Pre-2017) | FP1 | Matrix algebra | 3x3 matrices | - |
| OCR AS Further Maths 2017 | Pure Core | Determinants, Inverses and Equations | 3x3 Matrices | - |
| OCR MEI A2 Further Maths 2017 | Core Pure B | Matrices and Transformations | 3x3 Matrices | - |
| OCR-MEI A-Level (UK - Pre-2017) | FP2 | Matrix algebra | 3x3 matrices | - |
| Universal (all site questions) | M | Matrix algebra | 3x3 matrices | - |
| WJEC A-Level (Wales) | FP1 | Matrix algebra | 3x3 matrices | - |