Question

1-seja a matriz A= ( 1 -4 4) (2 5 6 ) (3 6 8), determine A22 e A33

2- escreva a matriz transposta das matrizes a seguir.
a) (1 -4 4) ( 2 5 6) ( 3 6 8) b) ( -7 12 8) ( -8 6 7) (9 5 4) c) ( 2 6 2) ( 3 7 8) (-4 1 7)

3) determine a inversa de cada matriz dada
a) (1 -4 4) ( 2 5 6) (3 6 8) b) (-7 12 8) ( -8 6 7) ( 9 5 4) c) (2 6 2) ( 3 7 8) ( -4 1 7)

4) dada as matrizes A= (-1 0) ( 2 -4) e B=( 1 3) (-2 5) , calcule 2A-B².

Answer 1

3) A Resposta : -0,25,-3.50,2.75,0.13,0.25,0.12,0.19,1.12,0.81.