Alguém me ajudaaaaa, preciso p hoje 12:30 !!!!!!SOS 03. Dadas as matrizes A =
1.31 -2], B =ale
dem
M = A. B. Determine a soma dos
elementos da matriz M.
Soluções para a tarefa
Resposta:
M=A.B=[−13−21].[0−116]
\begin{gathered}M = \left[\begin{array}{ccc}-1.0+(-2).(-1)&-1.1+(-2).6\\3.0+1.(-1)&3.1+1.6\\\end{array}\right] \end{gathered}M=[−1.0+(−2).(−1)3.0+1.(−1)−1.1+(−2).63.1+1.6]
\begin{gathered}M = \left[\begin{array}{ccc}2&-13\\-1&9\\\end{array}\right] \end{gathered}M=[2−1−139]
2)
\begin{gathered} A^{2} = A.A = \left[\begin{array}{ccc}-1&3\\0&2\\\end{array}\right] . \left[\begin{array}{ccc}-1&3\\0&2\\\end{array}\right] \end{gathered}A2=A.A=[−1032].[−1032]
\begin{gathered} A^{2} = \left[\begin{array}{ccc}-1.(-1)+3.0&-1.3+3.2\\0.(-1)+2.0&0.3+2.2\\\end{array}\right] = \left[\begin{array}{ccc}1&3\\0&4\\\end{array}\right] \end{gathered}A2=[−1.(−1)+3.00.(−1)+2.0−1.3+3.20.3+2.2]=[1034]
Explicação passo-a-passo:
espero ter ajudado marque como melhor resposta pfv