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Sudhanshu ranjan Asked a Question
August 26, 2020 11:43 pmpts 30 pts
Prove that there are no n×n matrix X and Y such that XY - YX = I, where I is n×n identity matrix and n is positive integer
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  • Anonymous User Best Answer
    See the attachment
    • cropped5827596603940188166.jpg
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  • Anonymous User thankyou
    Here I used the two important results related to trace of the matrices.... tr (A +B) = tr A + tr B and tr(AB) = tr(BA)
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