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If A is a matrix of order 3 and |A|=8, t...

If A is a matrix of order 3 and `|A|=8`, then `|adjA|=`

A

`1`

B

`2`

C

`2^(3)`

D

`2^(6)`

Text Solution

Verified by Experts

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

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  8. If A=[[a, 0, 0], [0, a, 0], [0, 0, a]], then |A||adjA|=

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

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  10. If A is a square matrix of order 3 and |A|=-2, then the value of the d...

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

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