Q.

Statement 1: |adj(adj(adjA))|=|A|(n1)3 where n is order of A
Statement 2:  |adjA|=|A|n

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a

Both statement are true and statement 2 is correct explanation of statement 1

b

Both statement are true and statement 2 is incorrect explanation of statement 1

c

Statement 1 is true statement 2 is false

d

Statement 1 is false statement 2 is true

answer is C.

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Detailed Solution

We know that |adj  A|=|A|n1

Statement 2 is false 

Now |adj(adjA)|=|adjA|n1=|A|(n1)2|adj(adj(adjA))|=|A|(n1)3

Statement 1 is true

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