Q.If $A = \begin{pmatrix} 1 & 2 & 3 \ 4 & 5 & 6 \ 7 & 8 & 10 \end{pmatrix}$ , then the sum of the elements of $A^{-1}$ is

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Q.If A=(123 456 7810)A = \begin{pmatrix} 1 & 2 & 3 \ 4 & 5 & 6 \ 7 & 8 & 10 \end{pmatrix}A=(1​2​3 4​5​6 7​8​10​), then the sum of the elements of A−1A^{-1}A−1 is