Problem type
Determinant of a matrix
- What it solves
- Find the determinant of a 2 by 2, 3 by 3 or 4 by 4 matrix: by cofactor expansion with every small determinant worked out, and by row reduction to a triangle, with the two answers checked against each other.
- Subject
- Linear Algebra
- Topic
- Determinants and inverses
- Also called
- det, cofactor expansion, Laplace expansion
- Free example
- Read the complete worked example