Exercises on Using a Calculator for Inverse Functions

Not too hard, unless you have a calculator nearby. If you don't, then don't try this exercise.

Use a calculator to answer the following questions.

1. tan-¹ 0.47
2. sin-¹ 0.99
3. cos-¹ 1
4. tan-¹ 3.31
5. cos-¹ 0.44
6. sin-¹ 0.47
7. cos-¹ 0.1
8. tan-¹ 0.53
9. tan-¹ 4.33
10. cos-¹ 0.4
11. sin-¹ 0.34
12. sin-¹ 0.31
13. sin-¹ 0.87
14. sin-¹ 1
15. tan-¹ 0.97
16. tan-¹ 5.67
17. cos-¹ 0.86
18. cos-¹ 0.81
19. sin-¹ 0.97
20. cos-¹ 0.02
21. sin-¹ 0.28
22. tan-¹ 0.08
23. cos-¹ 0.59
24. sin-¹ 0.12
25. tan-¹ 1.11
26. cos-¹ 0.87
27. tan-¹ 2.36
28. sin-¹ 0.6
29. cos-¹ 0.15
30. tan-¹ 2.97
31. tan-¹ 1.15
32. sin-¹ 0.83
33. sin-¹ 0.98
34. tan-¹ 0.34
35. cos-¹ 0.26
36. sin-¹ 0.93
37. cos-¹ 0.63
38. tan-¹ 1.38
39. cos-¹ 0.96