Diket matriks A=[2 1] dan B=[8 -4] -4 3. 5 3 Nilai det B-2A
Matematika
Marol
Pertanyaan
Diket matriks A=[2 1] dan B=[8 -4]
-4 3. 5 3
Nilai det B-2A
-4 3. 5 3
Nilai det B-2A
1 Jawaban
-
1. Jawaban frankykawi3
matriks
a b
[2 1 ] [8 -4]
[-4 3] [ 5 3]
det
a = (2.3)-(1.-4) b = (8.3)-(-4.5)
a = 6-(-4) b = 24-(-20)
a = 10 b = 44
nilai det B-2a
= 44-2(20)
= 44-40
= 4