

1. 
Use the first three terms of the trigonometric series to approximate the value of to four decimal places. 


A. 
1.9800 
B. 
0.4665 


C. 
0.0408 
D. 
0.0200 


Hint 


2. 
Write in exponential form. 


A. 

B. 



C. 

D. 



Hint 


3. 
Find ln (7) to four decimal places. 


A. 

B. 



C. 

D. 



Hint 


4. 
Use the first three terms of the trigonometric series and a calculator to approximate the value of to four decimal places. 


A. 
1.2491 
B. 
0.8453 


C. 
0.8663 
D. 
0.866 


Hint 


5. 
Write in exponential form. 


A. 

B. 



C. 

D. 



Hint 

