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Using a Calculator for Trigonometry
Contributed by: Worthington
  • 1. Use your calculator to find:

    sin (35o)

    (to two decimal places)
  • 2. Use your calculator to find:

    sin (25o)

    (to two decimal places)
  • 3. Use your calculator to find:

    sin (45o)

    (to two decimal places)
  • 4. Use your calculator to find:

    tan (15o)

    (to two decimal places)
  • 5. Use your calculator to find:

    tan (55o)

    (to two decimal places)
  • 6. Use your calculator to find:

    tan (29o)

    (to two decimal places)
  • 7. Use your calculator to find:

    cos (12.5o)

    (to two decimal places)
  • 8. Use your calculator to find:

    cos (33.5o)

    (to two decimal places)
  • 9. Use your calculator to find:

    cos (88o)

    (to two decimal places)
  • 10. Use your calculator to find:

    sin (41.25o)

    (to two decimal places)
  • 11. Use your calculator to find:

    sin-1 (0.88)

    (to two decimal places)
  • 12. Use your calculator to find:

    sin-1 (0.33)

    (to two decimal places)
  • 13. Use your calculator to find:

    sin-1 (0.251)

    (to two decimal places)
  • 14. Use your calculator to find:

    cos-1 (0.515)

    (to two decimal places)
  • 15. Use your calculator to find:

    cos-1 (0.123)

    (to two decimal places)
  • 16. Use your calculator to find:

    cos-1 (0.75)

    (to two decimal places)
  • 17. Use your calculator to find:

    tan-1 (0.173)

    (to two decimal places)
  • 18. Use your calculator to find:

    tan-1 (0.354)

    (to two decimal places)
  • 19. Use your calculator to find:

    tan-1 (0.276)

    (to two decimal places)
  • 20. Use your calculator to find:

    sin-1 (0.555)

    (to two decimal places)
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