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If the lines `(x-1)/2=(y+1)/3=(z-1)/4 ` and `(x-3)/1=(y-k)/2=z/1` intersect each other then find value of k
Show that the lines given by `(x+1)/-10=(y+3)/-1=(z-4)/1` and `(x+10)/-1=(y+1)/-3=(z-1)/4` intersect. Also find the co-ordinates of the point of intersection.