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In a /ABC,2x-y=0 is the perpendicular bi...

In a `/_ABC,2x-y=0` is the perpendicular bisector of side `AB` and it meets `AB` at `(1,2)` and `x+2y=13` is the perpendicular bisector of `AC` and it meets `AC` at `(3,5)`, `P` is the midpoint of `BC` and distance of `P` from centroid of `/_ABC` is `K` then `9K^(2)-6` is

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