JEE Main & Advanced Mathematics Determinants & Matrices Question Bank Special types of matrices, Transpose, Adjoint and Inverse of matrices

  • question_answer
    For a matrix A, AI = A and \[A{{A}^{T}}=I\]is true for [RPET 2000]

    A) If A is a square matrix

    B) If A is a non singular matrix

    C) If A is a symmetric matrix

    D) If A is any matrix

    Correct Answer: A

    Solution :

    It is obvious.


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