

1. 
Find the inner product of and if and . 


A. 
12 
B. 
14 


C. 
8 
D. 
14 


Hint 


2. 
Find if and . 


A. 

B. 



C. 

D. 



Hint 


3. 
Two vectors and are perpendicular if ________. 


A. 
their cross product equals zero 


B. 
their dot product is equal to their cross product 


C. 
their inner product is v_{1}w_{1} +v_{2}w_{2} 


D. 
their inner product equals zero 


Hint 


4. 
Find if and . 


A. 
5 
B. 
8 


C. 

D. 



Hint 


5. 
Evaluate if and . 


A. 
60 
B. 
21 


C. 
39 
D. 
44 


Hint 

