Question

Dúvidas nas questões que estão em anexo

9bd1edcd298a872b6e902a5a902e92e9.docx

Answer 1

 Vou ajudar com duas

 5)                   | 4    6    -1    3 |
               x =   |                        |              multiplicando pelo processo convencioal
                       | 0    -1    2    1 |              | 3    17 |
                                                     x.y = |             |     D= (3x14) - (5x17) = - 43
                       | 1    2  |                          | 5     14 |
               y =   | -1    1 |                                                  ALTERNATIVA c.
                       | 1    6  |
                       | 2    3  |

19)
                 | 2    1    5 |
                 | 3    4    7 |          D = (soma produtos diagonal principal)
                 | 1    3    2 |                                - (som produtos diagonal secundaria)
                                             Efetuando
                                                                        D = 0