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A=[(2,-2),(-2,2)], B=[(1,1),(1,1)] then...

`A=[(2,-2),(-2,2)], B=[(1,1),(1,1)]` then

A

`A^(-1)=B`

B

`B^(-1)` does not exist

C

`A^(-1)` does not exist

D

Both (B) and (C)

Text Solution

Verified by Experts

The correct Answer is:
d
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Knowledge Check

  • If A=[(2,2),(-3,2)], B=[(0,-1),(1,0)] then (B^(-1)A^(-1))^(-1) is equal to

    A
    `[(2,-2),(2,3)]`
    B
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    C
    `[(2,-3),(2,2)]`
    D
    `[(1,-1),(-2,3)]`

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    A
    `a=-1`
    B
    `a=1`
    C
    `b=2`
    D
    `b=-2`

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    A
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    C
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    D
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