For a square matrix An×n

(A) |adj A| = |A|n–1

(B) |A| = |adj A|n–1

(C) A(adj A) = |A| 

(D) \(\left|\mathrm{A}^{-1}\right|=\frac{1}{|\mathrm{A}|}\)

Choose the correct answer from the options given below : 

1
(B) and (D) only
2
(A) and (D) only
3
(A), (C) and (D) only
4
(B), (C) and (D) only

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