Express m-th times switched rows matrix A in terms of determinant A and m

Question

Let $A'$ be obtained from the square matrix $A$ by interchanging pairs of rows (columns) m times. Express $\det A'$ in terms of $\det A$ and m.

I have this question in my Assignment, but I unable to understand the question. Is there anyone who can help me out please?

Answer 1

$$ determinant(A') = (-1)^m determinant( A)$$