Check , whether , (1)/(11)[{:(-1,8,alpha...

Check , whether , `(1)/(11)[{:(-1,8,alpha),(1,-19,14),(2,6,-5):}]` is an inverse of `A=[{:(1,2,5),(3,1,1),(4,2,1):}]` , if so , that `alpha`=……

A

`-3`

B

2

C

`-5

D

does not exist

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The correct Answer is:

A

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