chapter 12 crossword puzzle

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Across
  1. 4. a function with y-values that repeat at regular intervals
  2. 8. the number of cycles in a given unit of time
  3. 10. the study of the relationships between the angles and sides of a right triangle
  4. 12. the angle between a horizontal line and the line of sight from the observer to an object at a lower level
  5. 15. a circle of radius 1 unit whose center is at the origin of a coordinate system
  6. 16. adjacent over opposite
  7. 17. an angle positioned so that its vertex is at the origin and its initial side is along the positive x-axis
Down
  1. 1. the least possible value of a for which f(x)=f(x+a)
  2. 2. hypotenuse over opposite
  3. 3. the angle between a horizontal line and the line of sight from the observer to an object at a higher level
  4. 5. opposite over adjacent
  5. 6. adjacent over hypotenuse
  6. 7. one complete pattern of a periodic function
  7. 9. a function defined using a unit circle
  8. 11. the measure of an angle theta in standard position whose rays intercept an arc of length 1 unit on the unit circle
  9. 12. for functions in the form y=asinb or y=acosb, the amplitude is |a|
  10. 13. opposite over hypotenuse
  11. 14. hypotenuse over adjacent