CUET Mathematics - Which of the following statement are correct? (A) A = [a_ij]_n x n is a diagonal matrix if a_ij = 0 when i ≠ j (B) A square matrix A = [a_ij] is called a symmetric matrix if a_ij = a_ji for all i, j (C) A square matrix A = [a_ij] is called a skew-symmetric matrix if a_ij = -a_ji for all i, j (D) For every square matrix A, there exist an identity matrix of the same order such that IA = AI = I Choose the correct answer from the options given below: | PYQs + Solutions