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OpenStudy (anonymous):
Let A = a11 a12 a13 a21 a22 a23 a11 a12 a13 where ai j ∈ R for each 1 ≤ i, j ≤ 3. Which of the following is/are true? A. det (A) = 0 B. det(A) depends only on the values of the entries ai j , 1 ≤ i, j ≤ 3. 1. Only A 2. Only B 3. Both A and B 4. Neither A nor B.
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