Answer: Zero matrix.
- A Unit matrix
- B Zero matrix
- C Diagonal matrix
- D Scalar matrix
Correct answer: B. Zero matrix
Explanation: A zero matrix or null matrix has every element equal to 0. It is the additive identity for matrix addition.
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