If A is an invertible square matrix then...

If A is an invertible square matrix then `|A^(-1)|`=?

A

|A|

B

`1/(|A|)`

C

1

D

0

Verified by Experts

The correct Answer is:

B

`"AA"^(-1)=1rArr|"AA"^-1|=|I|=1`
`rArr |A|.|A^(-1)|=1 rArr |A^(-1)|=1/(|A|)`

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