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यदि A=[(0,1,2),(1,2,3),(3,1,1)] हो तो ad...

यदि `A=[(0,1,2),(1,2,3),(3,1,1)]` हो तो adjA ज्ञात कीजिए तथा दर्शाइए कि
`A.(adjA)=(adjA).A=|A|I`

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