- Given The Coordinates A 2 3 4 And B 1 0 2 Answer Questions 1 5 For Each Multiple Choice Question Write Your Ch 1 (40.88 KiB) Viewed 27 times
Given the coordinates A (-2,3,4) and B (1,0,-2), answer
questions #1-5. For each multiple choice
question, write your choice of letter on the line provided. [7K] 1. Which of the following describes the vector AB ? a) [-3,3,6] b) [-1,3,2] c) [3,-3,-6] d) [1, -3, -2] 2. Which of the following is equal to | AB? a) √14 units b) √54 units c) 6 units d) √6 units 3. Which of the following is orthogonal to OA? a) [1,6,-4] b) [2,-3,-41 c) [4,3, -21 d) -1,6,4] 4. Written in terms of its vector components, OA is: a) -28 +3j+4k b)-2[1,0,0] +3[0,1,0] +4[0,0,1] c) (-28) (3) (4k) 5. Which of the following is collinear to OB? a) [3,0,-5] b) [4,0,8] c) [0,1] d) [1,0,2] 6. Given d= [3,-1,-1], and h = [2.-4,3), d-h= a) 7 b) 5 c) [-7.-11,-10] d) [7,11,10] 7. Given lä] =25, and b = 54 and the angle between their tails is 110°, determine the magnitude of a x b: a) 461.727 b) 1268.585 d) 148 500 c) 3709.095 d) both a and b