Page 86 - Buku Aljabar Linear & Matriks

Contoh 3.18

Misalkan:

3 1 −  4


A = 2 5 6
 
1 4  8 


Minor elemen a11 adalah:

3 1 − 4
6
M 11 = 2 5 6 = 5 8 = 16
4
1 4 8

Kofaktor a11 adalah:

C 11 = (− ) 1 1+ 1 M 11 = M 11 = 16

Demikian juga, minor elemen a32 adalah:

3 1 − 4 3 −

M 32 = 2 5 6 = 2 4 = 26
6
1 4 8

Kofaktor a32 adalah:

C 32 = (− ) 1 3+ 2 M 32 = −M 32 = − 26

77 | D e t e r m i n a n