C=[ 4 4 /8 0/MATRIZ INVERSA
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A=
4 4
8 0
det A =4*0 - 8*4 =-32 ≠ 0 tem inversa
####################################
Método só para matrizes 2x2 , o nosso caso
B=
a b
c d
B-¹ =
(1/det B) * (d -b)
(-c a)
######################################
A=
4 4
8 0
A-¹=
(-1/32) * (0 -4) = (0 1/8)
(-8 4) (1/4 -1/8)
4 4
8 0
det A =4*0 - 8*4 =-32 ≠ 0 tem inversa
####################################
Método só para matrizes 2x2 , o nosso caso
B=
a b
c d
B-¹ =
(1/det B) * (d -b)
(-c a)
######################################
A=
4 4
8 0
A-¹=
(-1/32) * (0 -4) = (0 1/8)
(-8 4) (1/4 -1/8)
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