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The trace of the matrix is defined as _______

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The trace of the matrix is defined as _______

(a) Sum of all the elements of the matrix

(b) Sum of all the elements of leading diagonal of  matrix

(c) Sum of all non-zero elements of matrix

(d) None of the mentioned

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This intriguing question comes from Types of Matrices topic in division Basic Structures: Sets, Functions, Sequences, Sums and Matrices of Discrete Mathematics

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Correct choice is (b) Sum of all the elements of leading diagonal of  matrix

The best explanation: Trace is the sum of the elements of leading diagonal of matrix.

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