Question

Determine os produtos das matrizes a seguir

POR FAVOORR

Answer 1

Resposta:

a)

$\begin{pmatrix}6.2+5.1&6.4+5.3\\ 1.2++0.1&1.4+0.3\end{pmatrix}=\\ \\ \\ \begin{pmatrix}8+5&24+15\\ 2+0&4+0\end{pmatrix}=\boxed{\begin{pmatrix}13&39\\ 2&4\end{pmatrix}}$

b)

$\begin{pmatrix}5.7+4.0&5.4+4.2\\ 2.7+1.0&2.4+1.2\end{pmatrix}=\\ \\ \\ \begin{pmatrix}35+0&20+8\\ 14+0&8+2\end{pmatrix}=\boxed{\begin{pmatrix}35&28\\ 14&10\end{pmatrix}}$

c)

$\begin{pmatrix}1.5+3.2+6.3&1.0+3.4+6.2\\ 2.5+5.2+1.3&2.0+5.4+1.2\\ 4.5+0.2+2.3&4.0+0.4+2.2\end{pmatrix}=\\ \\ \\ \begin{pmatrix}5+6+18&0+12+12\\ 10+10+3&0+20+2\\ 20+0+6&0+0+4\end{pmatrix}=\boxed{\begin{pmatrix}29&24\\ 23&22\\ 26&4\end{pmatrix}}$