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A symmetric matrix is a one in which?(a) All diagonal elements are zero(b) All diagonal elements are 1(c) A = A^T(d) A = -A^TThis question was addressed to me in an online interview.My question is based upon Types of Matrices topic in division Basic Structures: Sets, Functions, Sequences, Sums and Matrices of Discrete Mathematics

Answer»

Correct answer is (C) A = A^T

The explanation: For symmetric matrices, MATRIX REMAINS same EVEN after TRANSPOSE.



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