

1. 
Find the product 5(cos 120° + i sin 120°) · 2(cos 90° + i sin 90°). Express the result in rectangular form. 


A. 

B. 



C. 

D. 



Hint 


2. 
In a circuit with alternating current, , where E represents voltage, I current, and Z impedance. Determine the voltage in a circuit where there is a current of amps and an impedance of ohms. 


A. 

B. 



C. 

D. 



Hint 


3. 
Find the product . Express the result in rectangular form. 


A. 
54 
B. 
54i 


C. 
54i 
D. 
54 


Hint 


4. 
Find the quotient . Express the result in rectangular form. 


A. 
1.07 + 6.92i 
B. 



C. 
6.96  0.76i 
D. 



Hint 


5. 
Find the quotient Express the answer in rectangular form, approximating a and b to the nearest hundredth. 


A. 
2.40  2.40i 
B. 
0.19  0.23i 


C. 
2.14 + 2.64i 
D. 
2.14  2.64i 


Hint 

