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If B is an idempotent matrix, and A=I-B ...

If `B` is an idempotent matrix, and `A=I-B ,` then `A^2=A` b. `A^2=I` c. `A B=O` d. `B A=O`

A

`A^(2)=A`

B

`A^(2)=I`

C

`AB =0`

D

`BA=0`

Text Solution

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The correct Answer is:
A, C, D
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