Answer: det(A) = 0.
- A det(A) = 1
- B det(A) = 0
- C A = A<sup>T</sup>
- D A has all positive elements
Correct answer: B. det(A) = 0
Explanation: A singular matrix has determinant equal to zero and does not have an inverse.
Element aij of matrix A sits at the intersection of row i and column j.
Concept context
Matrix operations, determinants, inverses, and solving linear systems