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यदि A=[{:(3,1),(-1,2):}], तो दिखाओ कि A^...

यदि A=[{:(3,1),(-1,2):}], तो दिखाओ कि A^(2)-5A+7I=O. अत: A^(-1) ज्ञात कीजिए। | कक्षा 12 | निर्धारक...

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