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If \( \mathrm{A}=\left(\begin{array}{ll}2 & 2 \\ 9 & 4\end{array}\right) \) and \( \mathrm{I}=\left(\begin{array…

Q1

If \( \mathrm{A}=\left(\begin{array}{ll}2 & 2 \\ 9 & 4\end{array}\right) \) and \( \mathrm{I}=\left(\begin{array}{ll}1 & 0 \\ 0 & 1\end{array}\right) \), then \( 10 \mathrm{~A}^{-1} \) is equal to:

a

\( \mathrm{A}-4 \mathrm{I} \)

b

\( \mathrm{A}-6 \mathrm{I} \)

c

\( 4 \mathrm{I}-\mathrm{A} \)

d

\( 6 \mathrm{I}-\mathrm{A} \)

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