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Show that if A is invertible, then adj(A) is invertible, and (adj(A))-1 %3! det(A) Show that if det(A) = 1, then adj(adj(A)) = A

Show that if A is invertible, then adj(A) is invertible, and (adj(A))-1 %3! det(A) Show that if det(A) = 1, then adj(adj(A)) = A %3D %3D

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