1. find the equation of line passing through ( -1, 3, 2) and perpendicular to the line x/1 = y/2 = z/3 and (x+2)/-3 = (y-1)/2 = (z+1)/5

 

and one more..........

 

2. find the lenght of perpendicular frm point (1, 2,3) to the point (x-1)/3 = (y-7)/-2 =(z-7)/-2

 

ans to this question is 7 units but i am getting in fraction!!

plz help me!!