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If A={:[(1,0,-2),(-2,-1,2),(3,4,1)]:} th...

If `A={:[(1,0,-2),(-2,-1,2),(3,4,1)]:}` then `A^(-1)` =

A

`A^(2) - 2A - 4l`

B

`A^(2) - A - 3I`

C

`(1)/(2) [A^(2) + A + 2l]`

D

`A^(2) + A - 2l`

Text Solution

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The correct Answer is:
B
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