diketahui
A = [ 2 4 1
3 5 2]
dan
B = [2 -1
-1 3
5 -2]
jika C=AB, maka determinan matriks C =![]()
A = [ 2 4 1
3 5 2]
dan
B = [2 -1
-1 3
5 -2]
jika C=AB, maka determinan matriks C =
A =( 2 4 1 )
( 3 5 2)
B =( 2 -1 )
( -1 3 )
( 5 -2)
C = A.B
= ( 2 4 1 ) × ( 2 -1 )
( 3 5 2) × ( -1 3 )
( 5 -2)
C = (2.2 + 4.-1 + 1.5 ) ( 2.-1 + 4.3 + 1.-2 )
(3.2 + 5.-1 + 2.5 ) ( 3.-1 + 5.3 + 2 .-2)
C = ( 5 8 )
( 11 8 )
det C = ( 5 8 )
( 11 8)
= 5.8 - 8.11
= 40 - 88
= - 48
[answer.2.content]
