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A matrix A is said to be an Idempotent m...

A matrix `A` is said to be an Idempotent matrix if `A^2=A`. Then which of the following is true

A

`I+A` is Idempotent

B

`I-A` is Idempotent

C

Both are Idempotent

D

None of these

Text Solution

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The correct Answer is:
B
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