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Prerna Chaudhary posted an Question
September 18, 2022 • 16:20 pm 30 points
  • IIT JAM
  • Mathematics (MA)

Is the inverse of involutory matrix is involutory...

is the inverse of involutory matrix is involutory... please explain

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  • Dr. avtar chand Best Answer

    A is involutory matrix A²=I AA=I (A.A)^-1=I A^-1.A^-1=I (A^-1)²=I A^-1 involutory matrix

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