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Maths-

General

Easy

Question

If A and B are non-singular square matrices of same order, then $a d j left parenthesis A B right parenthesis$ is equal to

$(a d j A) (a d j B)$
$(a d j B) (a d j A)$
$(a d j B^{- 1}) (a d j A^{- 1})$
$(a d j A^{- 1}) (a d j B^{- 1})$

The correct answer is: $left parenthesis a d j B right parenthesis left parenthesis a d j A right parenthesis$

It is obvious.

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