Question

Find the inverse of following matric by elementary operations

[0 1 2
1 2 3
3 1 1]

Answer 1

first of all determine determinant of given matrix and all co -factors and minors of this matrix (M11,m22,etc.)and make a matrix then transe of making matrix transe means row converts into columns and vice versa.After this for inverse use formula(transe matrix /determinant) In final calculate inverse of this matrix.