If A and B are non-singular 3×3 matrices such that |A| = 2 and |B| = 3, then |2AB⁻¹| equals:
If A and B are non-singular 3×3 matrices such that |A| = 2 and |B| = 3, then |2AB⁻¹| equals:
- A. 16/3
- B. 4/3
- C. 8/3
- D. 2/3
Answer: A) 16/3
Explanation: |2AB⁻¹| = 2³ |A| |B⁻¹| = 8 × 2 × (1/3) = 16/3.
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