Question: please show all work 13. ( a) Prove: If A is invertible, then dett A WellA b) Prove: If A is invertible. then adj(A) is

please show all work

13. ( a) Prove: If A is invertible, then dett A WellA b) Prove: If A is invertible. then adj(A) is invertible and adj(A ) A - adj(A). Hint: you may use part (a) to prove part ( b) of this proof)

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