Answer
a) 3x4
b) 1 4 3
c) 2 0 4 6
d) 1
e) $A^t=\begin{matrix} 1 & 2 & 1
\\1 & 0 & 1
\\ 1 & 4 & 3
\\ 3 & 6 & 7\end{matrix}$
Work Step by Step
This question shows the basic definitions of a matrix for a specific matrix $A$.
We want:
a) size (rows x columns)
b) third column (vertical)
c) second row (horizontal)
d) element of $A$ in the (3, 2)th position
e) the transpose of $A$
