Question

sendo a=2/0/4/1 e b= 2/-1/5/9 determine a)4a b)3a-b​

Answer 1

Operação com matrizes:

Sendo:

a=
[2 0]
[4 1 ]

b=
[2 -1]
[5 9]

determine:
a)4a

4 x
[2 0]
[4 1 ]

4.2 4.0
4.4 4.1

[8 0]
[16 4]

R.:
[8 0]
[16 4]

___________
b)3a-b​

3 x

[2 0]
[4 1 ]

3.2 3.0
3.4 3.1

[6 0]
[12 3]
-
[2 -1]
[5 9]

6-2 0-(-1)
12-5 3-9

=
[4 1]
[7 -6]

R.:
[4 1]
[7 -6]