MCQ
The matrix $\left[\begin{array}{ccc}8 & 0 & 0 \\ 0 & 8 & 0 \\ 0 & 0 & 8\end{array}\right]$ is
  • A
    identity matrix
  • scalar matrix
  • C
    null matrix
  • D
    diagonal matrix

Answer

Correct option: B.
scalar matrix
(b) scalar matrix

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