例2.1.0 0 002.00=(-1)(1234) a422433444 = 24003.100-1=(1)(654321)242= -6! = -720s2.3n阶行列式R§2.3 n阶行列式 1 2 3 4 5 6 例2. 1 0 0 0 0 2 0 0 0 0 3 0 0 0 0 4 = −6! (1234) 11 22 33 44 ( 1) a a a a  = − (654321) 16 25 34 43 52 61 ( 1) a a a a a a  = − = 24 = −720