The adjoint of matrix [2 3; 1 5] is:
The adjoint of matrix [2 3; 1 5] is:
- A. [5 −3; −1 2]
- B. [5 3; 1 2]
- C. [2 −3; −1 5]
- D. [5 −1; −3 2]
Answer: A) [5 −3; −1 2]
Explanation: adj = [d −b; −c a] = [5 −3; −1 2].
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