Question

After finding every cofactor \(C_{ij}\), what must be formed before taking the transpose?

Options

• The identity matrix \[I\]

• The cofactor matrix \[C\]

• The zero matrix \[O\]

• The inverse matrix \[A^{-1}\]

Answer 1

All cofactors are arranged in their corresponding positions to form the cofactor matrix \[C.\] The transpose of this matrix gives the adjoint.