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If A=[(1,-1,3),(3,2,1),(4,5,6)] then cof...

If `A=[(1,-1,3),(3,2,1),(4,5,6)]` then cofactor of `A_(22)` is

A

3

B

-6

C

6

D

-3

Text Solution

Verified by Experts

The correct Answer is:
B
Cofactor of `A_(22)=(-1)^(2+2)|(1,3),(4,6)|`
`=+(6-12)=-6`
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MHTCET PREVIOUS YEAR PAPERS AND PRACTICE PAPERS-MATRICES-MHT CET CORNER
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