Question

for the matrix d shown below, determine the value of the element ( d_{13} ). if the element is not defined, click the undefined button. ( d = \begin{bmatrix}-7 & -4 & -3end{bmatrix} )

Explanation:

Step1: Understand matrix element notation

In a matrix, the element \( d_{ij} \) represents the element in the \( i \)-th row and \( j \)-th column.

Step2: Identify the element \( d_{13} \)

For the matrix \( D =

$$\begin{bmatrix}-7 & -4 & -3\end{bmatrix}$$

\), it has 1 row and 3 columns. The element \( d_{13} \) is the element in the 1st row and 3rd column. Looking at the matrix, the element in the 1st row (only row) and 3rd column is \(-3\).

Answer:

\(-3\)