Determinants

The determinant of a singular matrix is 0. Any 2x2 square matrix with a determinant that is not 0, is considered to be “non-singular”. Although we would associate singular with “1”, it is a determinant of 0 we look for when we look for singular matrices. It is also important to note that if a 2x2 matrix is singular, it does not have an inverse. #csecmaths #inverseofamatrix #determinant #determinantofamatrix #matrices

invertible matrix theorem