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Question

Question: If A is matrix of order 3 and \| A \| = 2, then \|adj A\| is equal to...

If A is matrix of order 3 and | A | = 2, then |adj A| is equal to

A

1

B

2

C

23

D

22

Answer

22

Explanation

Solution

| A | | adj (1) | = | A |3

| adj A | = | A |2 = 22