<<VilGebra`

Ejercicio 1

{Determinante[(({{-2, 2, -1}, {-4, -3, -3}, {4, 2, -3}}))],Determinante[(({{2, 2, -1}, {1, -3, -3}, {1, 2, -3}}))],Determinante[(({{2, -2, -1}, {1, -4, -3}, {1, 4, -3}}))],Determinante[(({{2, 2, -2}, {1, -3, -4}, {1, 2, 4}}))]}
Cramer[(({{2, 2, -1}, {1, -3, -3}, {1, 2, -3}})),{-2,-4,4}]

Ejercicio 2

{Determinante[(({{-5, 2, -3}, {(2/3), -(3/2), (2/3)}, {3, (1/2), -(1/3)}}))],Determinante[(({{(1/3), 2, -3}, {3, -(3/2), (2/3)}, {-3, (1/2), -(1/3)}}))],Determinante[(({{(1/3), -5, -3}, {3, (2/3), (2/3)}, {-3, 3, -(1/3)}}))],Determinante[(({{(1/3), 2, -5}, {3, -(3/2), (2/3)}, {-3, (1/2), 3}}))]}
Cramer[(({{(1/3), 2, -3}, {3, -(3/2), (2/3)}, {-3, (1/2), -(1/3)}})),{-5,(2/3),3}]