Question

sendo a matriz A2x2 onde ...​

Answer 1

Vamos lá :

$Ma = \left[\begin{array}{ccc}a_{11} &a_{12} \\a_{21} &a_{22} \end{array}\right]$

a₁₁ = - 2 + 1 = - 1

a₁₂ = 3.1 + 2.2 = 3 + 4 = 7

a₂₁ = 3.2 + 2.1 = 6 + 2 = 8

a₂₂ = - 2 + 2 = 0

$M(A) = \left[\begin{array}{ccc}-1&7\\8&0\end{array}\right]$

B)

$Mb = \left[\begin{array}{ccc}b_{11} &b_{12} \\b_{21} &b_{22} \end{array}\right]$

b₁₁ = - 1 + 1 = 0

b₁₂ = 2.1 - 2 = 2 - 2 = 0

b₂₁ = 2.2 - 1 = 4 - 1 = 3

b₂₂ = - 2 + 2 = 0

$M(B) = \left[\begin{array}{ccc}0&0\\3&0\end{array}\right]$

Espero ter ajudado !!!