Question

sabendo que M= [ 3 3 2 2 0 6 1 0 -3 ], N= [ 0 0 1 0 2 0 a 1 0 ] ​

Answer 1

$3 \times 0 + 3 \times 0 + 2 \times a = - 360 \\ 0 + 0 + 2a = - 360 \\ 2a = - 360 \\ a = - 360 \div 2 = - 180$

portanto a é igual a -180

Answer 2

Resposta:

M = 3 . 0 . (-3) + 3 . 6 . 1 + 2 . 2 . 0 - 2 . 0 . 1 - 3 . 6 . 0 - (-3) . 2 . 3

M = 0 + 18 +  0  - 0 - 0 - (-18)

M = 36

N = 0 . 2 . 0 + 0 . 0 . a + 1 . 0 . 1 - 1 . 2 . a - 0 . 0 . 1 - 0 . 0 . 0

N = 0 + 0 + 0 - 2a - 0 - 0

N = -2a

(36 . -2a) = -360

A = 5