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Sudhanshu Ranjan posted an Question
August 27, 2020 • 05:21 am 30 points
  • CSIR NET
  • Mathematical Sciences

If a is nonzero symmetric matrix, then prove that trace of a² is positive.

If A is nonzero symmetric matrix, then prove that trace of A² is positive.

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    Satpal singh best-answer

    see the attachment put A =A' A is non zero matrix so atleast one element will be non zero.

    cropped3296264024088051158.jpg
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