Question

IF A is a skrew symetric matrix and n is an even positive integer the A POWER n is

Answer 1

if n is odd, then  A^n  is  skew symmetric .  the determinant is zero.

if n is even,  A^n  is symmetric matrix.   All the diagonal elements are positive or, all of the m are negative.    The determinant is always positive.  All non-diagonal elements are either negative or positive, but, opposite in sign as compared to the diagonal elements.