Question

If $A = \begin{bmatrix}0&2&-3\\\ -2&0&-1\\\ 3&1&0\end{bmatrix}$ , then A is a

• A. symmetric matrix
• B. skew-symmetric matrix
• C. diagonal matrix
• D. none of these.

Answer 1

Answer: (B)

skew-symmetric matrix

Answer 2

Since $A^t = - A$, therefore, A is a skew symmetric matrix.