Question:
If $A$ is a square matrix such that $|A| \neq 0$ and $A^{2}-A+2 \mid=0$ then $A^{-1}=$ ?
A. (I-A)
B. $(1+A)$
C. $\frac{1}{2}(\mathrm{I}-\mathrm{A})$
D. $\frac{1}{2}(I+A)$
Solution:
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