If A = [3 2; 1 4], then (A⁻¹)⁻¹ equals:
If A = [3 2; 1 4], then (A⁻¹)⁻¹ equals:
- A. A
- B. adj A
- C. A'
- D. I
Answer: A) A
Explanation: The inverse of the inverse is the original matrix itself.
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