In problems 3- 6, find the inverse of each matrix by the row-reduction method. In problems 5 - 6, find the inverse of each matrix by the row-reduction method. Problems 7 -10: Express the system as \(A...In problems 3- 6, find the inverse of each matrix by the row-reduction method. In problems 5 - 6, find the inverse of each matrix by the row-reduction method. Problems 7 -10: Express the system as AX=B; then solve using matrix inverses found in problems 3 - 6. Problems 9 -10: Express the system as AX=B; then solve using matrix inverses found in problems 3 - 6. Suppose we are solving a system AX=B by the matrix inverse method, but discover A has no inverse.
