Question

Tolong di jawab soal Matriks ini lengkap dengan cara ^^

Answer 1

R tranpos =( 3a-b........2)
......................(6a+7b.....3)

3a-b =-5 |x7| 21a-7b=-5
6a+7b=8 |x1| 6a+7b=8
-------------------------------- +
.............................27a=3
..................................a=1/9

3a-b =-5
3(1/9)-b =-5
1/3-b=-5
b=5 1/3
...= 16/3

a^2 . b = (1/9)^2 . 16/3
.............= 1/81 . 16/3
..............= 16/243