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यदि A=[[3,-2],[4,-2]] तथा I=[[1,0],[0,1]...

यदि `A=[[3,-2],[4,-2]]` तथा `I=[[1,0],[0,1]]` एव `A^(2)=kA-2I` हो तो `k` ज्ञात कीजिए।

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