Question

matrix A=[1 2
2 1] & B =[2 1
1 2] find A(BA)​

Answer 1

Answer:

BA=[2 1 [1 2

1 2] 2 1]

= [4 4

4 4]

A(BA) = [12 12

12 12]

Answer 2

BA= [2+2 4+1

1+4 2+2]

= [ 4 5

5 4]

therefore,A(BA)

A*BA

= [1 2 * [4 5

2 1] 5 4]

= [ 4+10 5+8

8+5 10+4]

= [ 14 13

13 14] is your answer.. plz mark me as brainliest