Question

Dada a matriz A= 2 0 8 15
4 5 -7 -2
determine as matrizes:
a)2A=
b)1 A=
2
c) -3A=
d) 1A=
3
​

Answer 1

Resposta:

Explicação passo-a-passo:

[2 0 8 15]

[4 5 -7 -2]

a)

[2 0 8 15]

[4 5 -7 -2]

2A

=

[4 0 16 30]

[8 10 -14 -4]

__________

B)

[2 0 8 15]

[4 5 -7 -2]

1/2 A

=

[1 0 4 15/2]

[2 5/2 -7/2 -1]

_____________

C)

[2 0 8 15]

[4 5 -7 -2]

- 3A

=

[-6 0 -24 -45]

[-12 -15 21 6]

----------------------

D)

[2 0 8 15]

[4 5 -7 -2]

1/3 .A

[2/3 0/3 8/3 15/3]

[4/3 5/3 -7/3 -2/3]

=

[2/3 0 8/3 5]

[4/3 5/3 -7/3 -2/3]