IfBresults fromAby interchanging two rows or columns, then det(B)=-det(A)

IfBresults fromAby multiplying one row or column with the numberc, then det(B)=c*det(A)

IfBresults fromAby adding a multiple of one row to another row, or a multiple of one column to another column, then det(B)=det(A)

sorry about the first post, apparently i can't copy and paste formulae