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Question
If A `= [(2"x", 0),("x","x")] "and A"^-1 = [(1,0),(-1,2)],` then x equals ____________.
Options
2
`-1/2`
1
`1/2`
MCQ
Solution
If A `= [(2"x", 0),("x","x")] "and A"^-1 = [(1,0),(-1,2)],` then x equals `underline(1/2)`.
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