If A is a square matrix of order 3 such ...

If A is a square matrix of order 3 such that |adj A| =64, find |A|

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Knowledge Check

If A is a square matrix of order 3 such that |A|=13 , then |adj A| is equal to

A

39

B

196

C

169

D

190

If A is any square matrix of order 3x3 such that absA=3 , then the value of abs(adjA)

A

3

B

(1/3)

C

9

D

27

If A is an invertible matrix of order n , then |adj A|=

A

`|A|^(n)`

B

`|A|^(n+1)`

C

`|A|^(n-1)`

D

`|A|^(n+2)`

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BETTER CHOICE PUBLICATION-DETERMINANTS -ASSIGNMENT (MOST IMPORTANT QUESTIONS FOR PRACTICE) (SECTION V)

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