Answer: the null matrix.
- A the identity matrix
- B the null matrix
- C a diagonal matrix
- D a scalar matrix
Correct answer: B. the null matrix
Explanation: A = Aᵀ = −A forces A = 0, the null matrix.
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