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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
Solution
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).
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