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Vijay posted an Question
July 19, 2022 • 20:14 pm 30 points
  • CSIR NET
  • Mathematical Sciences

For real symmetric matrices a and b, which of the following is true? (a) ab is a symmetric matrix (b) ab=ba (c) all eigenvalues of ab are real ab = ba (d) ab is

For real symmetric matrices A and B, which of the following is true? (a) AB is a symmetric matrix (b) AB=BA (c) All eigenvalues of AB are real AB = BA (d) AB is invertible if either A is invertible or B is invertible

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    Navdeep goyal 1 Best Answer

    If A And B are symmetric metrix then AB is symmetric iff AB=BA All eigen value of symmetric metrix are real So options c

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