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Question
Find the inverse of the matrix A `= [(1,3),(2,7)],` using elementary row transformation.
Options
`[(7,-3),(-2,1)]`
`[(5,-3),(-2,1)]`
`[(1,-3),(-2,1)]`
`[(1,-3),(2,1)]`
MCQ
Solution
`[(7,-3),(-2,1)]`
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