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(Solved): 5. Use Cof(A),Adj(A) and compute inverse matrix A1. Show that AA1=I A=21104 ...



5. Use \( \operatorname{Cof}(A), \operatorname{Adj}(A) \) and compute inverse matrix \( A^{-1} \). Show that \( A A^{-1}=I \)
5. Use and compute inverse matrix . Show that Write clean, and clear. Show steps of calculations


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Find the determinant.
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