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If A^2 = A, then (I + A)^(4) is equal to...

If `A^2 = A`, then `(I + A)^(4)` is equal to

A

`I + 15A`

B

`1 + 7A`

C

`1 + 8A`

D

`1 + 11A`

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The correct Answer is:
A
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