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If the square matrices A and B are such ...

If the square matrices A and B are such that `AB = A` and `BA = B`, then

A

A is an idempotent matrix but B is not

B

B is an idempotent matrix but A is not

C

A and B are both idempotent matrices

D

Neither A nor B are idempotent matrices

Text Solution

Verified by Experts

The correct Answer is:
C
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