JEE Main & Advanced Mathematics Determinants & Matrices Question Bank Types of matrices, Algebra of matrices

  • question_answer
    Choose the correct answer [Karnataka CET 1999]

    A) Every identity matrix is a scalar matrix

    B) Every scalar matrix is an identity matrix

    C) Every diagonal matrix is an identity matrix

    D) A square matrix whose each element is 1 is an identity matrix

    Correct Answer: A

    Solution :

    We know that every identity matrix is a scalar matrix.


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