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प्रश्न
Choose the correct alternative:
If A = `[(7, 3),(4, 2)]` then 9I2 – A =
पर्याय
`"A"^-1`
`"A"^-1/2`
`3"A"^-1`
`2"A"^-1`
उत्तर
`2"A"^-1`
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