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Let A=((1,-1,1),(2,1,-3),(1,1,1)) and (1...

Let `A=((1,-1,1),(2,1,-3),(1,1,1))` and `(10) B=((4,2,2),(-5,0,alpha),(1,-2,3))`. If B is the inverse of matrix A, then `alpha` is

A

`-2`

B

5

C

2

D

`-1`

Text Solution

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The correct Answer is:
B
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