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If A=[(1, 0,0),(0,1,0),(a,b,-1)] and I i...

If `A=[(1, 0,0),(0,1,0),(a,b,-1)]` and I is the unit matrix of order 3, then `A^(2)+2A^(4)+4A^(6)` is equal to

A

`7A^(8)`

B

`7A^(7)`

C

8I

D

6I

Text Solution

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The correct Answer is:
A
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