Given that A is a square matrix of order 3 and | A | = - 4, then | adj A | is equal to:

(a) -4

(b) 4

(c) -16

(d) 16

Asked by Abhisek | 1 year ago |  62

#### 1 Answer

##### Solution :-

Right answer is (d) 16

Explanation:-

as$$|adj A|=|A|^{n−1},$$ where n is order of matrix A

=(−4)2=16

Answered by Pragya Singh | 1 year ago

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