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For matrix A, (A^T)^T is equals to ___________

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For matrix A, (A^T)^T is equals to ___________

(a) A

(b) A^T

(c) Can’t say

(d) None of the mentioned

The question was posed to me in an interview for internship.

I need to ask this question from Transpose of Matrices in section Basic Structures: Sets, Functions, Sequences, Sums and Matrices of Discrete Mathematics

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Best answer
The correct choice is (a) A

Best explanation: Transpose of a transposed matrix results in same matrix.

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