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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

`A^(2)=A`

B

`A^(2)=I`

C

`AB=I`

D

BA=I

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The correct Answer is:
A
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DISHA PUBLICATION-MATRICES-Exercise 2: Concept Applicator
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