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(Ensino Médio) Matemática09/26/2024

(UEPG-PR) Considerando as matrizes A= (a_ij)_3x3 com a_ij = ...

(UEPG-PR) Considerando as matrizes A= (a_ij)_3x3 com a_ij = 2i - j e B = (b_ij)_3x3 com b_ij = i . j, assinale a soma dos itens que for correto. 01) A + B

(2 5 8) (4 7 12)

  1. A^(-1) = (1/2 3 10) (1 7 9) (3/5)

  2. A^t = (9 4 1) (16)

  3. A . B = (-2 -4 -6) (10 20 30) (22 44 66)

A) 07 B) 06 C) 26 D) 17 E) 19

Question image: (UEPG-PR) Considerando as matrizes A= (a_ij)_3x3 com a_ij = 2i - j e B = (b_ij)_3x3 com b_ij = i . j, assinale a soma dos itens que for correto.
01) A + B
=
(2  5  8)
(4  7 12)

08) A^(-1) =
(1/2  3  10)
(1   7  9)
(3/5)

02) A^t =
(9  4  1)
(16)

16) A . B =
(-2  -4  -6)
(10  20  30)
(22  44  66)

A) 07
B) 06
C) 26
D) 17
E) 19
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