4.7 WS Arcsin, Arccos and Arctan Name: Per:

4.7 WS
Arcsin, Arccos and Arctan
Evaluate each of the following.

3

1. cos-1 ½
2. sin-1  

2


5. arctan 0.8693 6. arccos 0.8910

 3
3



9. cos-1  
10.
arcsin

 2 
2




 3
-1  3 



13. sin-1 
14.
tan

 3 
2





2

17. arctan(-0.3443) 18. arccos  

2


Name:
Per:
3. arctan 1
4. sin-1 (-1/2)
7. sin-1 0
8. tan-1 1

3
2
 12. arctan
11. arcsin  

4
 2 
15. sin-1 1
16. sin-1 (-1)
19. cos-1 0
20. arccos (-0.5746)
Evaluate each of the following:
1. tan-1 (-1)
 1
4. cos-1   
 2
2
7. arccos
2

)
4
4
13. cos (cos-1 )
5
10. sin-1 (tan
 3

2. arccos 

2


 3

3. arcsin 

2


5. arctan (-1)
6. arctan
8. sin (sin-1 ½ )
9. sin-1 (cos
11. arcsin
3
4
3

)
2
12. cos (cos-1 ½ )
3
14. sin (sin-1 2 )
15. arctan 5

 3 
17. tan cos 1   
 5 

18. sin arctan  3
 1
19. arccos   
 2
3

20. sin 2 cos 1 
5

21. cos tan 1 3

 1 
22. cos arcsin   
 2 

23. arctan ½
1

24. sin 2 sin 1 
2

25. cos tan 1 1

3

26. sin  2 sin 1

2


27. arcsin (-1)
15 
1
28. tan sin 1 
17 
2
3
1
29. sin arctan 
5
2
30. cos 2 tan 1 3
16. tan (sin-1

5
)
13







