Question

15. If AB = A and BA = B, then
(a) B= 1
(b) A = 1
(c) A² = A
(d) B2 = 1

Answer 1

Answer:

A= 1

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Answer 2

Answer:

Correct option is

A

A

2

=A

B

B

2

=B

A=AB=A(BA)=(AB)A=AA=A

2

and B=BA=B(AB)=(BA)B=BB=B

2

Step-by-step explanation:

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