Question

Find the inverse of the matrix   −1 2 1 0 1 1 1 0 2   using row reductionfind the inverse of the matrix   −1 2 1 0 1 1 1 0 2   using row reduction

Answer 1

To find the Inverse of a 2x2 Matrix: swap the positions of a and d,put negatives in front of b and c, and divide everything by the determinant (ad-bc).






use this formula