[R] Find the shortest distances between a) the point (-2, 1, 5) and the line x = -5 (E 6 + 3 b) the point (0, 3, 8) and the line 21-1 = 1 x2-2 -1 = x3-3 4 c) [X] the point (11,2,-1) and the line of intersection of the planes 2 x. = 0 and x = A 1 +2 3\ 1 3 2 -3