Question

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Answer 1

Resposta:

1.

a11 = 55

a13 = 84

a22 = 32

a23 = 70

a32 = 15

2.

B = b11 b12

b21 b22

b11 = 2.1+3.1

b11 = 2+3

b11 = 5

b12 = 2.1+3.2

b12 = 2+6

b12 = 8

b21 = 2.2+3.1

b21 = 4+3

b21 = 7

b22 = 2.2+3.2

b22 = 4+6

b22 = 10

B = 5 8

7 10

3.

C = 2 6 4

5 7 -1

4.

B+D = 6 5 6

6 7 7

9 2 9

5. a)

DetA = 1.1-(0.0)

DetA = 1-0

DetA = 1

b)

DetB = 6.(-3)-(2.0)

DetB = -18-0

DetB = -18