Matrices Practice Questions Ques17

Question: Which of the following matrices is a row matrix?

Options:

(A) $\begin{pmatrix} 1 & 2 & 3 \end{pmatrix}$

(B) $\begin{pmatrix} 1 \\ 2 \\ 3 \end{pmatrix}$

(C) $\begin{pmatrix} 1 & 2 \\ 3 & 4 \end{pmatrix}$

(D) $\begin{pmatrix} 1 & 2 & 3 \\ 4 & 5 & 6 \end{pmatrix}$

Show Answer

Answer: A

Explanation:

(A) Correct. This matrix has 1 row and 3 columns, making it a row matrix.

(B) Incorrect. This matrix has 3 rows and 1 column, making it a column matrix.

(C) Incorrect. This matrix has 2 rows and 2 columns, making it a square matrix.

(D) Incorrect. This matrix has 2 rows and 3 columns, making it a rectangular matrix.