Question

[1
1 2
2 1
8. If A =
and B =
2
1
; find :
1 2
(i) A (BA)
(ii) (AB) B.​

Answer 1

Answer:

A

2

+B

2

=AA+BB

=A(BA)+B(AB) ..... Given AB=BandBA=A

=(AB)A+(BA)B

=BA+AB

=A+B

Mark as brainleast answer✌

Answer 2

Answer:

4,2

Step-by-step explanation:

as A=2 and B=1

1)A(BA)

=2(2×1)

=4

2)(AB)B

=(2×1)1

=2