11. E is a vector whose tail is at (4, 2) and whose head is at (1, 3). a. Calculate the magnitude of E. b. Determ the coordinates of point D on vector CD: if C(6, 0) and a = AB. 0. Determine the coordinates of point E on vector E, if F (3, 2) and E = H. d. Determine the coordinates of point G on vector GH), if G(3, 1) and 6H" = E. CHAPTER 6 231