Vector Arithmetic

Vector Arithmetic

11th - 12th Grade

5 Qs

quiz-placeholder

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Vector Arithmetic

Vector Arithmetic

Assessment

Quiz

Mathematics

11th - 12th Grade

Medium

Created by

Gerry Bilodeau

Used 1+ times

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5 questions

Show all answers

1.

MULTIPLE CHOICE QUESTION

2 mins • 1 pt

Given
 u=<3,2,1>, v=<2,4,1>u=<3,-2,1>,\ v=<-2,4,1>  , find

 u  vu\ \circ\ v  (dot)

4

-13

-15

-1

None of the above

2.

MULTIPLE CHOICE QUESTION

2 mins • 1 pt

 If  0<a<8,0<a<8,  is the angle between  <1,2,4><1,2,-4>  and  <2,a,5><2,a,5>  

 90 90\ ^{\circ}  

Less than  90\ ^{\circ}  

Greater than  90\ ^{\circ}  

 00^{\circ}  

None of the above

3.

MULTIPLE CHOICE QUESTION

2 mins • 1 pt

Find <3,3,4>\left|\left|<3,-3,4>\right|\right|  


0

3

4

5

 34\sqrt{34}  

4.

MULTIPLE CHOICE QUESTION

2 mins • 1 pt

Find the projection of <6,1,7><-6,1,7>  onto  <1,4,2>.<1,4,-2>.  


 1621\frac{16}{\sqrt{21}}  

 1686\frac{16}{\sqrt{86}}  

 1621-\frac{16}{\sqrt{21}}  

 1686-\frac{16}{\sqrt{86}}  

 908\sqrt{908}  

5.

MULTIPLE CHOICE QUESTION

2 mins • 1 pt

Find a unit vector in the direction of <2,1,2><2,-1,-2>  


 <23,13,23><\frac{2}{3},-\frac{1}{3},-\frac{2}{3}>  

 <23,13,23><\frac{2}{3},\frac{1}{3},\frac{2}{3}>  

 <29,19,29><\frac{2}{9},-\frac{1}{9},-\frac{2}{9}>  

 <29,19,29><-\frac{2}{9},\frac{1}{9},\frac{2}{9}>  

None of the above

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