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The non singular matrix is $\"\"$ .

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Let the matrix be $\"\"$ .

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Formula for the inverse matrix : $\"\"$ .

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Determinant of $\"\"$ is $\"\"$ .

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$\"\"$

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$\"\"$

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$\"\"$

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Substitute the corresponding values in above formula.

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$\"\"$

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Inverse of the matrix $\"\"$ is $\"\"$ .