Скачать с ютуб Inverse of a 3x3 Matrix | Co-factor Method в хорошем качестве

Inverse of a 3x3 Matrix | Co-factor Method

#matrix #inverse #3x3 Subscribe to the channel here:    / @iqinitiative   Determinant of a 3x3 Matrix:    • Determinant of a 3x3 Matrix   Other matrix videos:    • Matrices   Facebook: https://www.facebook.com/profile.php?... Tweeter: https://twitter.com/IQ_Initiative?t=b... How to find Inverse of a 3x3 Matrix | Co-factor Method INVERSE OF A MATRIX Definition Let A be any square matrix.  If there exists another square matrix B Such that AB = BA = I (I is a unit matrix) then B is called the inverse of the matrix A and is denoted by A-1. The cofactor method is used to find the inverse of a matrix. Using matrices, the solutions of simultaneous equations are found.                                                      Working Rule to find the inverse of the matrix Step 1: Find the determinant of the matrix. Step 2: If the value of the determinant is non zero proceed to find the inverse of the matrix. Step 3: Find the cofactor of each element and form the cofactor matrix. Step 4: The transpose of the cofactor matrix is the adjoint matrix. Step 5:  Apply the formula for the inverse