139- If two matrices $A$ and $(I - A)$ are inverses of each other, then matrix $A^4$ equals which of the following? (1) $A$ (2) $-A$ (3) $I$ (4) $-I$
\textbf{139-} If two matrices $A$ and $(I - A)$ are inverses of each other, then matrix $A^4$ equals which of the following?
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(1) $A$ \hfill (2) $-A$ \hfill (3) $I$ \hfill (4) $-I$
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