Question

Alguém sabe resolver esse exercício de matrizes​

Answer 1

Vamos achar o valor de MP.

M = $\left[\begin{array}{cc}1&-2\\2&-3\\\end{array}\right]$  P = $\left[\begin{array}{cc}3&2\\-1&4\\\end{array}\right]$  ==> multiplicação de matrizes.

MP = $\left[\begin{array}{cc}3+2&2-8\\6+3&4-12\\\end{array}\right]$  ==> eu fiz linha (M) x coluna (P).

  $\left[\begin{array}{cc}5&-6\\9&-8\\\end{array}\right]$ = $\left[\begin{array}{cc}n&t\\k&q\\\end{array}\right]$

5 = n

-6 = t

9 = k

q = -8

n . k - t . q

5 . 9 - (-6 . (-8))

45 - 48

- 3

LETRA A