Question

what are the special rules of determinants

Answer 1

Theorem DRCMA Determinant for Row or Column Multiples and Addition. ... Let B be the square matrix obtained from A by multiplying a row by the scalar α and then adding it to another row, or by multiplying a column by the scalar α and then adding it to another column. Then det(B)=det(A) det ( B ) = det ( A ) .