The reflection of the point (2,-1,3) in ...

The reflection of the point `(2,-1,3)` in the plane `3x-2y-z=9` is

A

`((26)/(7),(15)/(7),(17)/(7))`

B

`((26)/(7),-(15)/(7),(17)/(7))`

C

`((15)/(7),(26)/(7),-(17)/(7))`

D

`((26)/(7),(17)/(7),-(15)/(7))`

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The correct Answer is:

B

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