3.2 Properties of Determinants - Video
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Topics covered
- Using row operations with computing determinants
- Combining cofactor expansion with row operation to compute determinants
- Properties of determinants, transpose, products of matrices
- If determinant of matrix is zero then the matrix is singular (i.e. no inverse)
- If determinant of matrix is non-zero then matrix is nonsingular (i.e. inverse of matrix exist)
- Several examples
Errors/Typos/Omissions in Video
- Time mark in video: 3:53. Omission: On Example 1, I omitted the row op
-2*R1 + R3 ---> R3
to get the matrix 5*[1 3 4; 0 0 2; 0 1 3]
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