Answer: Diagonal matrix.
- A Identity matrix
- B Zero matrix
- C Symmetric matrix
- D Diagonal matrix
Correct answer: D. Diagonal matrix
Explanation: A diagonal matrix has non-zero elements only on the main diagonal; all off-diagonal elements are zero.
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