How to find the inverse of a matrix

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How to find the inverse of a matrix Inverse Matrices (3 x 3) How to find the inverse of a matrix

The minor determinant The minor determinant that corresponds to an element is given by deleting the row and column of the element.

The minor determinant The minor determinant that corresponds to an element is given by deleting the row and column of the element. The minor determinant corresponding to the 5 is 11.

The minor determinant The minor determinant that corresponds to an element is given by deleting the row and column of the element. The minor determinant corresponding to the -3 is 2.

The minor determinant The minor determinant that corresponds to an element is given by deleting the row and column of the element. The minor determinant corresponding to the 8 is 7.

Finding Inverses 3x3 An algorithm can be followed to find the inverse of a 3x3 matrix, M. Find the matrix of minor determinants. Alter the signs of the minors which don’t lie on the diagonals. Transpose Divide by det(M)

Finding Inverses 3x3 (Example) Make sure non-singular. Find the matrix of minor determinants. Alter the signs of the minors which don’t lie on the diagonals. Transpose Divide by det(M)