Standards: Chapter 5 I can compute the determinant of 2x2 and 3x3 matrices using the definition or the shortcut method. I understand how elementary row operations change the determinant. I can compute the determinant of an nxn matrix using row reduction. I know how to use the determinant to test whether a matrix is invertible. I know how the determinant of a product of matrices relates to the determinant of each factor, how the determinant of A and A^{-1} are related, and shortcuts for computing the determinant of upper (or lower) triangular block matrices (cf. Thm. 5.16). I can compute the determinant of an nxn matrix using cofactor expansion.