If A is non-singular and A−2IA−4I=0, then 16A+43A−1=

A2−6A+8I=0A−6I+8A−1=06I=A+8A−1I=A6+86A−1I=16A+43A−1

If A is non-singular and A−2IA−4I=0, then 16A+43A−1=

A2−6A+8I=0A−6I+8A−1=06I=A+8A−1I=A6+86A−1I=16A+43A−1

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If A is non-singular and $(A - 2 I) (A - 4 I) = 0$ , then $\frac{1}{6} A + \frac{4}{3} A^{- 1} =$

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$A^{2} - 6 A + 8 I = 0$

$\begin{array}{l} A - 6 I + 8 A^{- 1} = 0 \\ 6 I = A + 8 A^{- 1} \end{array}$

$\begin{array}{l} I = \frac{A}{6} + \frac{8}{6} A^{- 1} \\ I = \frac{1}{6} A + \frac{4}{3} A^{- 1} \end{array}$

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If A is non-singular and $(A - 2 I) (A - 4 I) = 0$ , then $\frac{1}{6} A + \frac{4}{3} A^{- 1} =$