Answer: The same order (same rows and columns).
- A The same determinant value calculated for both
- B The same number of rows, even with differing columns
- C The same number of columns, even with differing rows
- D The same order (same rows and columns)
Correct answer: D. The same order (same rows and columns)
Explanation: Matrix addition is defined only when both matrices have identical orders (same number of rows and columns).
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