Answer: m x p.
- A n x n
- B m x p
- C m x n
- D n x p
Correct answer: B. m x p
Explanation: For AB to exist, columns of A must equal rows of B. The resulting matrix has order m x p.
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