problem3_pdf - huang (jwh2377) Homework 3 Kushner (56640) 1...

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Unformatted text preview: huang (jwh2377) Homework 3 Kushner (56640) 1 This print-out should have 20 questions. Multiple-choice questions may continue on the next column or page find all choices before answering. 001 10.0 points Which of the following expressions are well- defined for all vectors a , b , and c ? I. ( a b ) c , II. a ( b + c ) , III. | a | ( b c ) . 1. II and III only 2. none of them 3. I only 4. II only 5. I and III only 6. all of them 7. III only 8. I and II only 002 10.0 points Find the angle between the vectors a = ( 3 , 2 ) , b = ( 5 , 3 ) . 1. angle = 5 6 2. angle = 3 3. angle = 4 4. angle = 3 4 5. angle = 6 6. angle = 2 3 003 10.0 points Determine the dot product of vectors a , b when | a | = 1 , | b | = 4 and the angle between a and b is / 3. 1. a b = 3 2. a b = 3 2 3. a b = 2 4. a b = 5 2 5. a b = 7 2 004 10.0 points Find the scalar projection of b onto a when b = 3 i + 3 j + 2 k , a = i 2 j 2 k . 1. scalar projection = 7 3 2. scalar projection = 1 3. scalar projection = 2 4. scalar projection = 4 3 5. scalar projection = 5 3 005 10.0 points Find the vector projection of b onto a when b = ( 4 , 1 ) , a = ( 3 , 2 ) ....
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problem3_pdf - huang (jwh2377) Homework 3 Kushner (56640) 1...

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