Question

permutation matrix is always​

Answer 1

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A permutation matrix is a square matrix obtained from the same size identity matrix by a permutation of rows. Such a matrix is always row equivalent to an identity.

Answer 2

$\huge \mathbb\fcolorbox{black}{lavenderblush}{Answer♡}$

A permutation matrix is a square matrix obtained from the same size identity matrix by a permutation of rows. Such a matrix is always row equivalent to an identity.