[ –8 –6 7
–7 –4 –4
4 –9 3 ] .
C11=(–1)1+1·M11=–48
M12=(–7)·(3) – 4·(–4)=–21+16=–5
C12=(–1)3·M12=5
M13=(–7)·(–9)–4·(–4)=63+16=79
C13=(–1)1+3·M13=79
M21=(–6)·3–(–9)·7=–18+63=45
C21=(–1)3=–45
M22=(–8)·3–4·7=–24–28=–52
C22=52
M23=(–8)·(–9)–4·(–6)=72+24=96
C23=–96
M31=(–6)·(–4)–(–4)·7=24+28=48
C31=48
M32=(–8)·(–4)–7·(–7)=32+49=81
C32=–81
M33=(–8)·(–4)–(–7)·(–6)=32–42=–10
C33=10