Question

Determine:
2 • A - 1/3 • B

Answer 1

A = | 1 3 |
.......| 2 4 |

A = (1*4)-(2*3) => A = 4 - 6 => A = - 2


B = | 2 -1 |
.......| 4 0 |

B = (2*0)-(4*-6) => B = 0 - (-24) => B = 0 + 24 => B = 24

Determinar

2*A - 1/3 *B

2*(-2) - 1/3 * 24

- 4 - 1/3 * 24

- 12/3 - 1/3 * 24

- 13/3 * 24

- 312/3

- 104