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The matrix A=[0 0 4 0 4 0 4 0 0] is a (a...

The matrix `A=[0 0 4 0 4 0 4 0 0]` is a (a) square matrix (b) diagonal matrix (c) unit matrix (d) none of these

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We have given: `A=[(0, 0, 4),( 0, 4, 0),( 4, 0, 0)]`
Now as we know that any matrix is suare matrix if number of rows are equal to the number of columns.
Hence the given matrix `A=[(0, 0, 4),( 0, 4, 0),( 4, 0, 0)]` is a square matrix.
Therefore correct option is (a).
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