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If A=[[1, 2, 3], [1, 4, 9], [1, 8, 27]],...

If `A=[[1, 2, 3], [1, 4, 9], [1, 8, 27]]`, then the value of `|adjA|` is

A

`144`

B

`72`

C

`36`

D

`18`

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The correct Answer is:
A
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  10. If A=[[a, 0, 0], [0, a, 0], [0, 0, a]], then |A||adjA|=

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  11. If A=[[3, 0, 0], [0, 3, 0], [0, 0, 3]], then |A||adjA|=

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  14. If for the matrix A, A^(3)=I, then A^(-1)=

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  15. If for the matrix A, A^(5)=I, then A^(-1)=

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