Q.36 If A-1=3-11-156-55-22 and B=12-2-1300-21,find .

Q.36 If $A^{- 1} = [\begin{matrix} 3 & - 1 & 1 \\ - 15 & 6 & - 5 \\ 5 & - 2 & 2 \end{matrix}]$ and $B = [\begin{matrix} 1 & 2 & - 2 \\ - 1 & 3 & 0 \\ 0 & - 2 & 1 \end{matrix}]$ ,find .

$(A B)^{- 1}$

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Q.36 If A-1=3-11-156-55-22 and B=12-2-1300-21,find .

(AB)-1

Q.36 If $A^{- 1} = [\begin{matrix} 3 & - 1 & 1 \\ - 15 & 6 & - 5 \\ 5 & - 2 & 2 \end{matrix}]$ and $B = [\begin{matrix} 1 & 2 & - 2 \\ - 1 & 3 & 0 \\ 0 & - 2 & 1 \end{matrix}]$ ,find .

$(A B)^{- 1}$