If the distance between the planes 8x+12...

If the distance between the planes `8x+12y-14z=2 and 4x+6y-7z=2` can be expressed in the form `(1)/(sqrt(N))`, where N is natural, then the value of `(N(N+1))/(2)` is

A

`4950`

B

`5050`

C

`5150`

D

`5151`

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The correct Answer is:

(d)

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