Let \(A\) be a square matrix of order \(n\) then the determinant of the adjoint of a matrix \(A\) is

\(\left|A\right|^{n}\) \(\left|A\right|^{n-1}\) \(\left|A\right|^{n^2}\) \(\left|A\right|^{n+1}\)

\(\left|A\right|^{n-1}\)

Check for \(2 \times 2\) matrix