The matrix A=$\begin{bmatrix}2 & 0 & 0\\0 & -3 & 0\\0 & 0 & 5\end{bmatrix}$ is :
Answer & explanation
Correct answer: option 3
The correct answer is Option (3) → a diagonal matrix
Diagonal Matrix = $\left\{\begin{matrix}a_{ij}\,∀\,i=j\\0\,∀\,i≠j\end{matrix}\right.$
∴ A is diagonal matrix.