A line with d.r.s (2,7,-5) is drawn to i...

A line with d.r.s (2,7,-5) is drawn to intersect the lines `(x-5)/(3) = (y-7)/(-1) = (z +2)/(1) and ( x +3)/(-3) = (y-3)/(2) = (z-6)/(4)` at P and Q respectively. Length of PQ is

A

`sqrt78`

B

`sqrt77`

C

`sqrt54`

D

`sqrt74`

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The correct Answer is:

A

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