Answer: Aᵀ = A.
- A Aᵀ = A
- B Aᵀ = −A
- C Aᵀ = 0
- D A = I
Correct answer: A. Aᵀ = A
Explanation: A symmetric matrix equals its own transpose: Aᵀ = A.
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