
Vectors and Subspaces
Quiz
•
Mathematics
•
University
•
Practice Problem
•
Hard
Ivy Salvador
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22 questions
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1.
MULTIPLE CHOICE QUESTION
2 mins • 2 pts
Given u = <3, 7> and v =<-5, 4>, find 2u - 3v
2.
MULTIPLE CHOICE QUESTION
2 mins • 2 pts
Find the magnitude of the vector <-5, 12>
3.
MULTIPLE CHOICE QUESTION
2 mins • 2 pts
If w = <2, -5> and y = <2, 0>, find 2w + y
<-10, 2>
<4, -5>
<-6, 10>
<6, -10>
4.
MULTIPLE CHOICE QUESTION
2 mins • 2 pts
Find the dot product of <1, -2> and <3, 2>.
5.
MULTIPLE CHOICE QUESTION
2 mins • 2 pts
Fill in the blank: Vector a and vector b both point in the same direction.
a = < -6, -2, 8>
b = < _x_ , -12, 48 >
What is the value of _x_?
-36
36
18
-24
6.
MULTIPLE CHOICE QUESTION
2 mins • 2 pts
Fill in the blank: Vector a and vector b are perpendicular or orthogonal.
a = < -6, -2, 8>
b = < _x_ , -12, 48 >
What is the value of _x_?
-68
68
36
-24
7.
MULTIPLE CHOICE QUESTION
2 mins • 2 pts
-24
24
48
-48
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