\(\(\( (*Tutorial\ 1, \ 
      Q4, \ \(pg . \ 
          41;\)*) \)\(
\)\(\(AInverse = {{1, 3, 0}, {0, 1, 
            1}, {1, \(-1\), 4}};\)

    \(BInverse = {{2, 1, 1}, {0, 0, \(-2\)}, {1, 
            1, \(-1\)}};\)

    \(Print[\*""(A^(-1))="", 
        AInverse // MatrixForm];\)

    \(Print[\*""(B^(-1))="", 
        BInverse // MatrixForm];\)

    \(Print[\*""(AB)^(-1)=(B^(-1))(A^(-1))="", BInverse . AInverse // MatrixForm];\)

    \(Print["AB=", 
        Inverse[AInverse] . Inverse[BInverse] // 
          MatrixForm];\)

    \(Print["Check: ", \((Inverse[AInverse] . 
                Inverse[BInverse])\) . \((BInverse . AInverse)\) // 
          MatrixForm];\)




    \)\)\)