Page 9 - MATRIKS DAN PERMUTASI

Contoh :

A = B

2   3 6 9 
  =  3  3 
 5 4   5 4 


Contoh : Tentukan nilai a dan b dari kesamaan matriks berikut

3a   4 12   4
a.     
 2b  5   9  5 

3a = -12

a = -12/3
a = -4

2b = 9
b = 9/2

b = 4,5

 1 6a 1   1 3b   2
b  4a  5 3    2a 3  



4a + 5 = 2a

4a – 2a = -5
2a = -5

a = -5/2

6a – 1 = 3b + 2
6(-5/2) – 1 = 3b + 2

-15 – 1 = 3b + 2
-16 = 3b + 2

3b = 18
b = 6

LATIHAN 1