ay2aanal+ak1+aknai1性质6rh-r;-ai1-inaman2annailaia12aina11aaknak1性质6Ar;+Ikai1aindinanan2aan2a.annnnK82.4行列式的性质人§2.4 行列式的性质 11 12 1 1 2 1 2 1 2 n k n kn i i in n n nn a a a a a a a a a a a a = − 11 12 1 1 1 1 1 2 n i k in kn k i i in n n nn a a a a a a a r r a a a a a + + − − − 性质 6 11 12 1 1 2 1 2 1 2 n k k kn i k i i in n n nn a a a a a a r r a a a a a a + − − − 6 性质