1.
Let AA be a 3×33 \times 3 matrix such that adj A=(2−11−1021−2−1)\text{adj}\, A = \begin{pmatrix} 2 & -1 & 1 \\ -1 & 0 & 2 \\ 1 & -2 & -1 \end{pmatrix} and B=adj(adj A)B = \text{adj}(\text{adj}\, A). If ∣A∣=λ|A| = \lambda and ∣(B−1)T∣=μ\left| (B^{-1})^{T} \right| = \mu, then the ordered pair (λ,μ)(\lambda, \mu) is equal to: