mte3110 kaedah adjoin
DESCRIPTION
;)TRANSCRIPT
MTE3110
KAEDAH MENCARI SONGSANG – KAEDAH ADJOIN
A=[a11 a12 a13b21 b22 b23c31 c32 c33
]LANGKAH 1: HITUNGKAN PENENTU MATRIKS
|A|=(a11)(−1)1+1|b22 b23c32 c33|+(a12)(−1)1+2|b21 b23
c31 c33|+(a13 )(−1)1+3|b21 b22c31 c32|
LANGKAH 2: HITUNGKAN MATRIKS KOFAKTOR
[ a11=|b22 b23c32 c33|=x11 a12=−|b21 b23
c31 c33|=x12 a13=|b21 b22c31 c32|=x13
b21=−|a12 a13c32 c33|= y21 b22=|a11 a13
c31 c33|= y22 b23=−|a11 a12c31 c32|= y23
c31=|a12 a13b22 b23|=z31 c32=−|a11 a13
b21 b23|=z32 c33=|a11 a12b21 b22|=z33 ]
LANGKAH 3: DAPATKAN MATRIKS ADJOIN DENGAN MELAKUKAN TRANSPOSISI MATRIKS KOFAKTOR
MTE3110 – ALICIAJUNEAJEN – T3MT1 – 2014
[ x11 x12 x13y21 y22 y23z31 z32 z33
]T
→[ x11 y21 z31x12 y22 z32x13 y23 z33
]LANGKAH 4: GANTIKAN KE DALAM RUMUS
A−1= 1|A|
adj(A )
MTE3110 – ALICIAJUNEAJEN – T3MT1 – 2014