1. 2. Write down the equation of the line that passes through the points (5, -1, 2) and (3, 1, 1). Using vector form of the equation of a line. Find the angle between A = 37 - 23 + 3k and B = 1 - 3 + 5k. -20 -20 (-1 - 2t, 5 + 2t, 2 + t) (2 +t, -1 - 2t, 5 + 2t) 0 = cos 1 0 = sin-1 3v66 3v66 O A. O B. O A. O B. (5 + 2t, -1 - 2t, 2 + t) 0 = cos -1 20 0 = sin-1 20 (-1 - 2t, 2 + t, 5 + 2t) 366 366 O c. O D. O C. O D