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Swapping two rows of a determinant changes its value by a factor of:
A$-1$, since row swaps flip the sign of a determinant
B$+1$, since determinants are invariant under any row swap
C$0$, since swaps always make the determinant zero on chart
D$2$, since swaps double the value of a determinant here
Answer & Solution
Correct answer: A. $-1$, since row swaps flip the sign of a determinant
A single row swap multiplies the determinant by $-1$.
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