If $A = [a_{ij}]$ is a skew-symmetric matrix of order $n$, then
Answer & explanation
Correct answer: option 3
The correct answer is Option (3) → $a_{ij} = 0, \text{ where } i = j$ ##
In a skew-symmetric matrix, the $(i, j)^{th}$ element is negative of the $(j, i)^{th}$ element and all the diagonal elements are 0 i.e., $a_{ii} = 0$ Hence, the $(i, i)^{th}$ element = 0.