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For a invertible matrix A if A (ad...

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

A

10

B

100

C

20

D

0

Text Solution

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The correct Answer is:
A
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Knowledge Check

  • For a invertible matrix A if A(adjA)=[(10,0),(0,10)] , then |A|=

    A
    100
    B
    `-100`
    C
    10
    D
    `-10`

  • For a invertible matrix A, if A(adjA)=[[10, 0], [0, 10]] , then |A|=

    A
    `100`
    B
    `-100`
    C
    `10`
    D
    `-10`

  • For any 2xx2 matrix A if A (Adj. A) =[(10,0),(0,10)] then |A| equals

    A
    0
    B
    10
    C
    20
    D
    100

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