The matrix P = [(0,0,4),(0,4,0),(4,0,0)] is a

Question

The matrix P = \(\begin{bmatrix} 0 & 0 & 4 \\[0.3em] 0 & 4 & 0 \\[0.3em] 4 & 0 & 0 \end{bmatrix}\) is a 

A. square matrix
B. diagonal matrix
C. unit matrix
D. none

Answer 1

As P has equal number of rows and columns and thus it matches with the definition of square matrix.

The given matrix does not satisfy the definition of unit and diagonal matrices.

∴ Option (A) is the only correct answer.