The matrix $A = \begin{bmatrix} 0 & 1 & -3\\ -1 & 0 & 0 \\ 3 & 0 & 0 \end{bmatrix}$ is a
Answer & explanation
Correct answer: option 3
$A = \begin{bmatrix} 0 & 1 & -3\\ -1 & 0 & 0 \\ 3 & 0 & 0 \end{bmatrix}$
$A^T = \begin{bmatrix} 0 & -1 & 3\\ 1 & 0 & 0 \\ -3 & 0 & 0 \end{bmatrix}$
$A = -A^T$
⇒ A is skew symmetric