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Question
If A = `[(2,-3),(4,1)]`, then adjoint of matrix A is
(A) `[(1,3),(-4,2)]`
(B) `[(1,-3),(-4,2)]`
(C) `[(1,3),(4,-2)]`
(D) `[(-1,-3),(-4,2)]`
Solution
A = `[(2,-3),(4,1)]`
then adjoint of matrix A
adjA = `[(1,3),(-4,2)]`
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