a square matrix whose transpose is its negation; that is, it satisfies the condition −*A* = *A*^{T}. If the entry in the *i* th row and *j* th column is *a _{ij}*, i.e.

*A*= (

*a*

_{ij}) then the skew symmetric condition is

*a*= −

_{ij}*a*

_{ji}_{hence answer is A}