If \( A \) is a square matrix such that \( A^{2}=A \), then \( (I-A...

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If \( A \) is a square matrix such that \( A^{2}=A \), then \( (I-A)^{3} \)
\( \mathrm{P} \)
\( +A \) is equal to:
W
(1) \( I \)
(2) 0
(3) \( I-A \)
(4) \( I+\mathrm{A} \)
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