Cho A = . Tìm A−1

A−1=1det⁡(A) adj(A)A^{-1} = 

A−1=adj(A)A^{-1} = \mathrm{adj}(A)A−1=adj(A)

A−1=det⁡(A) AA^{-1} = \det(A)\,AA−1=det(A)A

A−1=ATA^{-1} = A^{T}A−1=AT