1.
\left(\begin{matrix}
1 & 3 & 2 \\
6 & 1 & 3
\end{matrix}\right)
+
\left(\begin{matrix}
1 & 3 & 5 \\
7 & 2 & 4
\end{matrix}\right)
= ?
Solution:
\\[3mm]
\left(\begin{matrix}
1 + 1 & 3 + 3 & 2 + 5 \\
6 + 7 & 1 + 2 & 3 + 4
\end{matrix}\right)
Answer:
\\[3mm]
\left(\begin{matrix}
2 & 6 & 7 \\
13 & 3 & 7
\end{matrix}\right)
2.
\left(\begin{matrix}
5 \\
9
\end{matrix}\right)
+
\left(\begin{matrix}
1 \\
7
\end{matrix}\right)
= ?
Solution:
\\[3mm]
\left(\begin{matrix}
5 + 1 \\
1 + 7
\end{matrix}\right)
Answer:
\\[3mm]
\left(\begin{matrix}
7 \\
16
\end{matrix}\right)
3.
\left(\begin{matrix}
0 & -1 \\
2 & 5
\end{matrix}\right)
+
\left(\begin{matrix}
2 & 7 \\
9 & 7
\end{matrix}\right)
= ?
Solution:
\\[3mm]
\left(\begin{matrix}
0 + 2 & -1 + 7 \\
2 + 9 & 5 + 7
\end{matrix}\right)
Answer:
\\[3mm]
\left(\begin{matrix}
2 & 6 \\
11 & 12
\end{matrix}\right)
4.
\left(\begin{matrix}
0 & -1 \\
2 & 5
\end{matrix}\right)
+
\left(\begin{matrix}
2 & 7 & 1 \\
9 & 7 & 8
\end{matrix}\right)
= ?
no solution
Answer:
Not possible to add. Matrices are different sizes.
5.
\left(\begin{matrix}
1 & 7 \\
2 & 4
\end{matrix}\right)
\times
\left(\begin{matrix}
3 & 3 \\
5 & 2
\end{matrix}\right)
= ?
Solution:
\\[3mm]
\left(\begin{matrix}
(1)(3) + (7)(5) & (1)(3) + (7)(3) \\
(2)(3) + (5)(4) & (2)(3) + (4)(2)
\end{matrix}\right)
Answer:
\\[3mm]
\left(\begin{matrix}
38 & 17 \\
26 & 14
\end{matrix}\right)
Question
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