Inverting a 3x3 matrix using determinants Part 1: Matrix of minors and cofactor matrix

Cofactor Matrix | Definition, Calculation & Use

Finding the Inverse of a 4x4 Matrix | Overview & Examples

Use the cofactor expansion formula (see, e.g., Example 10.5) to... | Filo

find the characteristic polynomial of the matrix using either a cofactor expansion or the special formula for 3x3 determinants note finding the characteristic polynomial of a 3x3 matrix is n 68557