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If A=[(1,2,2),(2,1,2),(2,2,1)] then A^(2...

If `A=[(1,2,2),(2,1,2),(2,2,1)]` then `A^(2)-4A` is equal to

A

`2I_(3)`

B

`3I_(3)`

C

`4I_(3)`

D

`5I_(3)`

Text Solution

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The correct Answer is:
D
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