1.

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

Answer»

`sqrt78`
`sqrt77`
`sqrt54`
`sqrt74`

ANSWER :A


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