~Periodic Functions Crossword~

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Across
  1. 4. The ratio of the side adjacent to an acute angle in the hypotenuse of a right triangle.
  2. 7. the reciprocal of cosine.
  3. 8. A way of remembering how to compute the sine, cosine, and tangent of an angle.
  4. 10. the inverse function of cosecant.
  5. 11. an angle with its terminal side on the X. axis or the Y. axis
  6. 12. The ratio of the side opposite of an acute angle and the side adjacent to that acute angle in a right triangle.
  7. 13. the inverse function of sine.
  8. 16. the Ray that begins the angle. 2 words
  9. 18. the inverse function of cosine.
  10. 20. Trig identities that show how to find the sine, cosine, or tangent of twice a given angle.
  11. 21. the inverse function of tangent.
Down
  1. 1. Trig identities which show how to find the sine, cosine, or tangent of the sum or difference of two given angles.
  2. 2. The reciprocal of Sine.
  3. 3. Trig identities that show how to find the sine, cosine, or tangent of half a given angle.
  4. 5. an equation or other relation that holds true for all values of the variables in the domain
  5. 6. the inverse function of secant.
  6. 9. the inverse function of cotangent
  7. 14. Angles which, drawn in standard position, share a terminal side.
  8. 15. the ratio of a circle's circumference to its diameter
  9. 17. the horizontal distance required for the graph of a periodic function to complete one cycle.
  10. 19. the reciprocal of tangent.