Question

The matrix  \[A = \begin{bmatrix}0 & 0 & 4 \\ 0 & 4 & 0 \\ 4 & 0 & 0\end{bmatrix}\] is a

Options

• square matrix

• diagonal matrix

• unit matrixn

• none of these

   

Answer 1

Given:  \[A = \begin{bmatrix}0 & 0 & 4 \\ 0 & 4 & 0 \\ 4 & 0 & 0\end{bmatrix}\]

Since, number of rows is equal to number of columns. 

Therefore, A is a square matrix.

Hence, the correct option is (a).