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Cofunctions , Unit Circle

Cofunctions , Unit Circle. #2. Quadrants. Quadrants. Quadrants. Quadrants. These function are always positive in these quadrants. Quadrants. A better way to remember which functions are positive. Seniors. Civics. Take. Find all 6 trig function values given Cosθ =-5/13 in Quadrant II.

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Cofunctions , Unit Circle

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  1. Cofunctions, Unit Circle #2

  2. Quadrants

  3. Quadrants

  4. Quadrants

  5. Quadrants These function are always positive in these quadrants.

  6. Quadrants A better way to remember which functions are positive. Seniors Civics Take

  7. Find all 6 trig function values given Cosθ=-5/13 in Quadrant II

  8. Find all 6 trig function values with the given information. Sinθ= 3/5 in QII Cosθ= ¼ in QIV Secθ= 5/3 in QI Cotθ= 7/3 in QIII

  9. TEAMS P 50……..#’s 4,6,8,16,18

  10. Cofunctions

  11. Cofunctions Find the cofunction for Sin 43°

  12. Find the value of each cofunction. Sin 72° Csc 24° Cot 71° Cos(θ – 42°)

  13. True or False Is Cos 32° < Sin 56°

  14. From 0° to 90° Cos90° = 0 Sin90° =1 Cos0° = 1 Sin0° =0 Cos,Csc,Cot Decrease Sin,Sec,Tan Increase

  15. True or False Determine whether the following are True or False? A) Sin 43° > Cos 29° B) Cot 21° < Tan 82° C) Sec 73° > Csc 27°

  16. TEAMS P 68……#’s 10,12,18,24,28

  17. Unit Circle These are the angles we care about most in Trigonometry.

  18. Unit Circle

  19. Unit Circle

  20. Unit Circle

  21. Find all 6 trig function values at 60 degrees.

  22. Find all 6 trig function values at 90 degrees.

  23. Reference Angles Find all 6 trigonometric function values at 240 degrees.

  24. Reference Angles Find all 6 trigonometric function values at each of the following angles. 180° 300° 135° Find your reference angle first!

  25. Negative Angle Measures Find all 6 trigonometric function values at -120 degrees.

  26. Negative Angle Measures Find all 6 trigonometric function values at -30 degrees.

  27. Coterminal Angle Measures Find all 6 trigonometric function values at 1020 degrees.

  28. Trigonmetric Functions Find all 6 trig functions at the given angle. Find the reference angle, draw the angle 315° -135° -270° 510° -300°

  29. Solving Right Triangles

  30. Solving Right Triangles

  31. Solving Right Triangles

  32. Solving Right Triangles 12

  33. Solving Right Triangles A 12.2 B 19.3 C

  34. Solving Right Triangles A 16 9 B C

  35. Solving Right Triangles A 12.4 B 18.3 C

  36. Solving Right Triangles A 65° 41’ 5.92 B C

  37. Solving Right Triangles A 19 32° 23’ 29” B C

  38. TEAMS P 88……#’s 12,14,24,26,30

  39. Evaluate the following cos60° + 2sin230°

  40. Evaluate the following tan2120° – 2cot240° Sec2300° - 2cos2150° + tan45° 3tan135° + 4cos(-180°) – 2csc270°

  41. Evaluate the following cot45° – 2sec300° sec2300° - 2sin2150° + tan(-45°) 3tan135° + 4csc(-180°) – 2cos270° sin300° - 2sin240° + sin2(-120°)

  42. Special Right Triangles

  43. Special Right Triangles

  44. Special Right Triangles

  45. Special Right Triangles

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