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If A=[(4,5),(3,1)]then |adjA| is...

If `A=[(4,5),(3,1)]`then `|adjA|` is

A

`-12`

B

`11`

C

`-11`

D

`12`

Text Solution

Verified by Experts

The correct Answer is:
C
Now `|A|=4-15=-11`
`:.|adjA|=|A|^(2-1)=|A|=-11`
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