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Question
Find the adjoint of the following:
`[(-3, 4),(6,2)]`
Solution
Let A = `[(-3, 4),(6,2)] = [("a"_11, "a"_12),("a"_21, "a"_23)]`
∵ Interchhanging a22 and a11
sign changing a12 and a21
adj A = `[(2, -4),(-6, -3)]`
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