Sudarshan posted an Question
April 06, 2020 • 18:59 pm 30 points
  • IIT JAM
  • Physics (PH)

Rwhich ofthe following matrices both the eigenvalues are positive 1 2 2 1 (d) (c) (b) a 3 5

rwhich ofthe following matrices both the eigenvalues are positive 1 2 2 1 (d) (c) (b) a 3 5

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    Ujjawal vishal Best Answer

    Remeber , sum of eigen values is trace of matrix and their product is the determinant value. If both the eigen values are positive that means trace and determinant both must be positive which is only in the case of matrix c here.

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