Respostas
Resposta:
Matriz C= \begin{gathered}\left[\begin{array}{ccc}0&1\\-1&0\end{array}\right]\end{gathered}
[
0
−1
1
0
]
Explicação passo-a-passo:
A=\begin{gathered}\left[\begin{array}{ccc}a11&a12\\a21&a22\end{array}\right]\end{gathered}
[
a11
a21
a12
a22
]
B=\begin{gathered}\left[\begin{array}{ccc}b11&b12\\b21&b22\end{array}\right]\end{gathered}
[
b11
b21
b12
b22
]
a11= 3×1 + 4×1 = 3 + 4 = 7
a12= 3×1 + 4×2 = 3 + 8 = 11
a21= 3×2 + 4×1 = 6 + 4 = 10
a22= 3×2 + 4×2 = 6 + 8 = 14
b11= (-4)×1 - 3×1 = (-4) - 3 = -7
b12= (-4)×1 - 3×2 = (-4) - 6 = -10
b21= (-4)×2 - 3×1 = (-8) - 3 = -11
b22= (-4)×2 - 3×2 = (-8) - 6 = -14
A=\begin{gathered}\left[\begin{array}{ccc}7&11\\10&14\end{array}\right]\end{gathered}
[
7
10
11
14
]
B=\begin{gathered}\left[\begin{array}{ccc}-7&-10\\-11&-14\end{array}\right]\end{gathered}
[
−7
−11
−10
−14
]
C=A+B
C=\begin{gathered}\left[\begin{array}{ccc}7&11\\10&14\end{array}\right]\end{gathered}
[
7
10
11
14
]
+ \begin{gathered}\left[\begin{array}{ccc}-7&-10\\-11&-14\end{array}\right]\end{gathered}
[
−7
−11
−10
−14
]
C=\begin{gathered}\left[\begin{array}{ccc}7+(-7)&11+(-10)\\10+(-11)&14(-14)\end{array}\right]\end{gathered}
[
7+(−7)
10+(−11)
11+(−10)
14(−14)
]
C=\begin{gathered}\left[\begin{array}{ccc}0&1\\-1&0\end{array}\right]\end{gathered}
[
0
−1
1
0
]