Question

2 1
6. If A =
3
and B=
1 0 4
find AB. Find BA, if it exists.
1 3​

Answer 1

Answer:

I am unable to understand the question plz give full question

Answer 2

Step-by-step explanation:

ANSWER

A=[

1

2

−2

3

] and B=[

1

2

2

3

3

1

]

In product BA number of columns in B id greater than the number of rows in A. So, BA does not exists.

⇒ AB=[

1

2

−2

3

] [

1

2

2

3

3

1

]

=[

1−4

2+6

2−6

4+9

3−2

6+3

]

=[

−3

8

−4

13

1

9

]

∴ AB=[

−3

8

−4

13

1

9

]