The co-ordinates of the points on the line x+2 1 = y-1 2 = z+1 -2 at a distance of 12 units from the point A (-2,1,-1) are

Step-by-step solution

x +2 1 = y -1 2 = z +1 -2 = (say) Hence coordinates of any point on the given line are ( -2,2 +1,-2 -1) . This point is at a distance of 12 units from (-2,1,-1) . array ll & 12= ( -2+2)^2+(2 +1-1)^2+(-2 -1+1)^2 & = ^2+4 ^2+4 ^2 =3 & = 4 Required point =(2,9,-9) or (-6,-7,7) array