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Question
Choose the correct alternative:
If A = `[(1, 2),(2, -1)]`, then adj (A) = ______
Options
`[(1, -2),(2, -1)]`
`[(-1, 2),(2, 1)]`
`[(-1, -2),(-2, 1)]`
`[(1, 2),(-2, -1)]`
MCQ
Fill in the Blanks
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Solution
`[(-1, -2),(-2, 1)]`
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