Question

Alguém aí me ajuda por favor

Answer 1

Resposta:

I)2A +B= $\begin{Vmatrix}5 & 11 \\16 & 21\end{Vmatrix}$

II)3A +C= $\begin{Vmatrix}8 & 16 \\28 & 36\end{Vmatrix}$

III)A.B = $\begin{Vmatrix}9 & 34 \\98 & 130\end{Vmatrix}$

Explicação passo a passo:

A = $\begin{Vmatrix}1 & 3 \\7 & 9\end{Vmatrix}$

B= $\begin{Vmatrix}3 & 5 \\2 & 3\end{Vmatrix}$

C= $\begin{Vmatrix}5 & 7 \\7 & 9\end{Vmatrix}$

I) 2A = $\begin{Vmatrix}2.1 & 2.3 \\2.7 & 2.9\end{Vmatrix}$

2A = $\begin{Vmatrix}2 & 6 \\14 & 18\end{Vmatrix}$

2A + B= $\begin{Vmatrix}2+3 & 6+5 \\14+2 & 18+3\end{Vmatrix}$

2A + B= $\begin{Vmatrix}5 & 11 \\16 & 21\end{Vmatrix}$

II)3A = $\begin{Vmatrix}3.1 & 3.3 \\3.7 & 3.9\end{Vmatrix}$

3A= $\begin{Vmatrix}3 & 9 \\21 & 27\\\end{Vmatrix}$

3A + C= $\begin{Vmatrix}3+5 & 9+7 \\21+7 & 27+9\end{Vmatrix}$

3A + C= $\begin{Vmatrix}8 & 16 \\28 & 36\end{Vmatrix}$

III) A.B = $\begin{Vmatrix}1.3+3.2 & 1.7+3.9 \\7.5+9.7 & 7.7+9.9\end{Vmatrix}$

A.B= $\begin{Vmatrix}9 & 34 \\98 & 130\end{Vmatrix}$