Answer: B⁻¹A⁻¹.
- A B⁻¹A⁻¹
- B A⁻¹B⁻¹
- C AB
- D BA
Correct answer: A. B⁻¹A⁻¹
Explanation: The inverse of a product reverses the order: (AB)⁻¹ = B⁻¹A⁻¹.
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