1. 2. 3. 4. 5. For questions 1- 5 use à = [1, 3, 2] and è = [1, -2, 2] Determine |ả - . a) 1 b) -1 Determine |à x | a) 5[2, 0, -1] b) 25√√5 c) -2 c) 5√5 Which is the best representation of 2 × à a) √500 b) 5√5 d) none of these Express à - c using standard unit vectors. a) [0, 5, 0] b) -5j c) 5j - 2k What value of 0 is closest to the angle between a and c a) 61⁰ b) 79⁰ c) 81⁰ c) -5[2, 0, -1] d) none of these d) none of these d) 89⁰ d) [10, 0, -5]

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