Please explain this problem and solve using matlab. DO NOT skip steps and please display maylab code solutions

Given the following $33$ matrix, $A,$ with elements:

$5,3,5$

$6,2,3$

$7,7,9$

Construct the permutation matrix that will exchange the first and third rows of a $33$ matrix and calculate the determinant of $P^{**}A.$

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Correct Answer

$-26$