1. Find the unit vector along the line joining point (2,4,4) to point (3,2,2). 2. If the position vectors of points T and S are 3ax 2a\" + a, and 4ax + 63. + 221/, respectively, nd a. Coordinates of T and S b. The distance vector from T to S c. The distance between T and S. 3. Points P, Q, and R are located at (-1, 4, 8), (2, l, 3), and (-1, 2, 3), respectively. Determine a. The distance between P and Q b. The distance vector from P to R c. The angle between QP and QR d. The area of triangle FOR 6. The perimeter of triangle FOR 4. Express the following points in Cartesian coordinates. a. P.(2= 30\