Pre-Calculus
Name_______________________
#48 Page 347-348
15-25(odd), 35-43(odd), 49-59(odd)
Period_______ Group #_________
Represent the complex number graphically and find the trigonometric form of the number.

15. 2 1  i 3

17. 5i
____________
Trig Form
___________
Trig Form
19. 7  4i
21. 7
____________
Trig Form
___________
Trig Form
23. 3  i 3
25. 3  i
____________
Trig Form
___________
Trig Form
Represent the number graphically and find the standard form.
35.
37.
3(cos120  i sin120)
3
(cos 300  i sin 300)
2
____________
Standard Form
___________
Standard Form
Represent the number graphically and find the standard form.
39.
41.
3
3 

3.75  cos
 i sin

4
4 




8  cos  i sin 
2
2

____________
Standard Form
___________
Standard Form
43.
3 cos 1845  i sin 1845
____________
Standard Form
Perform the operation and leave the result in trigonometric form.
 

   

 
49.  2  cos  i sin   6  cos  i sin  
4
4   
12
12  
 
51.
5
 2

 3  cos140  i sin140  3  cos 60  i sin 60 
53. 0.45  cos310  i sin 310  .60  cos 200  i sin 200 
5
5
 i sin
3
3
cos   i sin 
55.
cos
57.
59.
cos 50  i sin 50
cos 20  i sin 20
12  cos 52  i sin 52 
3  cos110  i sin110 