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If A=[(1,-1,1),(0,2,-3),(2,1,0)],B=(adjA...

If `A=[(1,-1,1),(0,2,-3),(2,1,0)],B=(adjA)` and `C=5A,` then `(|adjB|)/(|C|)=`

A

5

B

25

C

`-1`

D

1

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The correct Answer is:
D
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TARGET PUBLICATION-MATRICES-COMPETITIVE THINKING (Inverse off a matrix )
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  2. if A=[[2,-3],[-4,1]] then (3A^2+12A)=?

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  3. If A=[(1,-1,1),(0,2,-3),(2,1,0)],B=(adjA) and C=5A, then (|adjB|)/(|C|...

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  4. If A=[{:(3,2),(1,4):}], then what is A (adj A) equal to ?

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  5. If A=[(cos x, sin x),(-sin x,cos x)], then A(adj A)=

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  10. If d is the determinant of a square matrix A of order n , then the ...

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  11. If A={:[(4,2),(3,4)],:}" then: "|adj,A|=

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  12. For a invertible matrix A if A (adj A) =[(10,0),(0,10)] then |A...

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  13. If A is a matrix of order 3, such that A(adj A)=10I, then |adj A|=

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