find the inverse of the matrix 3 -1 if it exists -10 9

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find the inverse of the matrix 3 -1 if it exists -10 9

Mathematics
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At vero eos et accusamus et iusto odio dignissimos ducimus qui blanditiis praesentium voluptatum deleniti atque corrupti quos dolores et quas molestias excepturi sint occaecati cupiditate non provident, similique sunt in culpa qui officia deserunt mollitia animi, id est laborum et dolorum fuga. Et harum quidem rerum facilis est et expedita distinctio. Nam libero tempore, cum soluta nobis est eligendi optio cumque nihil impedit quo minus id quod maxime placeat facere possimus, omnis voluptas assumenda est, omnis dolor repellendus. Itaque earum rerum hic tenetur a sapiente delectus, ut aut reiciendis voluptatibus maiores alias consequatur aut perferendis doloribus asperiores repellat.

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invese of \[\begin{matrix} a & b \\ c & d \end{matrix}\] is \[\begin{matrix} d & -b \\ -c & a \end{matrix}\] divided by the determinant let me see if i can write it better
\[\frac{1}{ad-bc}\begin{pmatrix} d & -b \\ -c & a \end{pmatrix}\]
that thing out front means divide by the determinant

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is it 9/17 1/17 ??? 10/17 3/17
hold on let me check
yup
not too hard, was it?

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