If \( A \) and \( B \) are invertible matrices, which of the follow...

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If \( A \) and \( B \) are invertible matrices, which of the following statement is not correct.
(a) \( \operatorname{adj} A=|A| A^{-1} \)
(b) \( \operatorname{det}\left(A^{-1}\right)=(\operatorname{det} A)^{-1} \)
(c) \( (A+B)^{-1}=A^{-1}+B^{-1} \)
(d) \( (A B)^{-1}=B^{-1} A^{-1} \)
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