Performing the elementary row operations P32, M₂(-) A21(2) and A14(-3) on a matrix A, we get a new matrix B where det (B) = 24.

Question

Performing the elementary row operations P32, M₂(-) A21(2) and A14(-3) on a matrix A, we get a new matrix B where det (B) = 24. Which of the following gives det(A)?
 a. 72
b. -48
 c. 24
 d. 48
e. None of them.

Kunduz · Accepted Answer

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