Thread
profile picture
Clara
Student XII IPA
1 2 3 -2 1. Diketahui matriks A = 2 3 4 dan B = 2 1 5 6 7 a. Tentukan : AB, (AB)-1, A-1, B-1,B-1A-1 b. Apakah (AB)-1=B-1A-1 3 3 -3 -1 2 -1
Diubah3 tahun yang lalu
total answer
1
total comment
0
share
Terjawab

Jawaban (1)
0
profile picture
Putra Gema Nusa
Rockstar Teacher GURU SMA
b. (AB)" = B' At = (AB)" a 9 0 |-90 69 0 207 - 150 69 1/23 |-10/23 / 0 (-5%9 0 1/3 benar 0 5 2 o # A1, B1, Blat 1-2/ -1/ At=|-8/ | 2/3 7/ -| 11/23 2/3 B'=116% 23 3/3 2/9 923 E/23 -4/23 (1/23 Brat=1-10/23 / 0 (-50%9 -1/ / o Pahami pes 
a # AB = 1 2 3 -2 3 3 -1 2 3 4 2 3 – 2 . 5 6 7 -3 -1 -2 +4 +21 3 3+6-9-119-3 -4+6728 6 + 9-12 -216-4 -2 +10+42 3+15-18 -140-6 9 = 23 D o > = 20 3 o SO 3g -log | | 13 5 O 3 130 0 123 o I 00 # (AB)' 23.3.3+0+0-10+0+0) 123 o 30 150 3 50 3 23 30 3 150 0 123 150 o 130 3 Dahamify
b. (AB)" = B' At = (AB)" a 9 0 |-90 69 0 207 - 150 69 1/23 |-10/23 / 0 (-5%9 0 1/3 benar 0 5 2 o # A1, B1, Blat 1-2/ -1/ At=|-8/ | 2/3 7/ -| 11/23 2/3 B'=116% 23 3/3 2/9 923 E/23 -4/23 (1/23 Brat=1-10/23 / 0 (-50%9 -1/ / o Pahami pes 
a # AB = 1 2 3 -2 3 3 -1 2 3 4 2 3 – 2 . 5 6 7 -3 -1 -2 +4 +21 3 3+6-9-119-3 -4+6728 6 + 9-12 -216-4 -2 +10+42 3+15-18 -140-6 9 = 23 D o > = 20 3 o SO 3g -log | | 13 5 O 3 130 0 123 o I 00 # (AB)' 23.3.3+0+0-10+0+0) 123 o 30 150 3 50 3 23 30 3 150 0 123 150 o 130 3 Dahamify
3 tahun yang lalu
total comment
0
Balas
Terverifikasi