Find the dimensions of the matrix $A = \left[ \begin{array} { l l l l }
- 1 & 2 & 0 & 3
\end{array} \right]$
And identify the value of the element $Q _ { 14 }$ .

A) $4 \times 1$ ; $a _ { 14 } = 3$
B) $1 \times 4$ ; $a _ { 14 } = 2$
C) $4 \times 1$ ; $a _ { 14 } = - 1$
D) $1 \times 4$ ; $a _ { 14 } = - 1$
E) $1 \times 4$ ; $a _ { 14 } = 3$

Question

Find the dimensions of the matrix   $A = \left[ \begin{array} { l l l l } 
- 1 & 2 & 0 & 3
\end{array} \right]$  
And identify the value of the element $Q _ { 14 }$ .
 
A) $4 \times 1$ ; $a _ { 14 } = 3$
B) $1 \times 4$ ; $a _ { 14 } = 2$
C) $4 \times 1$ ; $a _ { 14 } = - 1$
D) $1 \times 4$ ; $a _ { 14 } = - 1$
E) $1 \times 4$ ; $a _ { 14 } = 3$

Quizplus · Accepted Answer

The matrix is a single row with four columns, making it a $1 \times 4$ matrix. The element $a_{14}$ refers to the element in the first row, fourth column, which is 3.

Find the Dimensions of the Matrix A=[−1203]A = \left[ \begin{array} { l l l l } - 1 & 2 & 0 & 3\end{array} \right]A=[−1​2​0​3​]

Find the Dimensions of the Matrix $A = \left[ \begin{array} { l l l l } - 1 & 2 & 0 & 3\end{array} \right]$