1.
Let AA and BB be two square matrices of order 33 such that A=3|A| = 3 and B=2|B| = 2. Then ATA(adj(2A))(adj(4B))(adj(AB))1AAT\left| A^{T} A \,(\text{adj}(2A))\,(\text{adj}(4B))\,(\text{adj}(AB))^{-1} A A^{T} \right| is equal to: