Diketahui matriks A(2 5 1 3) B(1 3 2 1) C(0 1 3 2) D=2A-B+C inver dari matriks D adalah​

Jawaban:

dik A( 2 5 1 3 )

B( 1 3 2 1 )

C ( 0 1 3 2 )

dit invers D…..?

jika D = 2A – B + C

jawab

D = 2 ( 2 5 1 3 ) – ( 1 3 2 1 ) + ( 0 1 3 2 )

D = ( 4 10 2 6 ) – ( 1 3 2 1 ) + ( 0 1 3 2 )

D = ( 3 7 0 5 ) + (0 1 3 2 )

D = ( 3 8 3 7 )

a= 3 b= 8 c=3 d=7

D= ad – bc

D= (3)(7) -(8)(3)

D= 21 – 24

D = -3

inver D= ( 3/-3 8/-3 3/-3 7/-3 )

maaf ya kalo salah

semoga membantu 🙂