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If, A and B be two matrices such that AB...

If, A and B be two matrices such that AB = A and BA=B. Then. Which of the following statements are correct ?
1. `A^(2)=A`
2. `B^(2)=B`
3. `(AB)^(2)=AB`

A

1 and 2

B

2 and 3

C

1 and 3

D

1,2 and 3

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PUNEET DOGRA-MATRIX-PREV YEAR QUESTIONS
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