TRIGONOMETRIC IDENTITIES

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Across
  1. 2. On the Unit Circle: 1 over the y-value when the angle is measured in the standard way.
  2. 5. Relates the sines of the angles of a triangle to the lengths of their opposite sides.
  3. 8. It is a cosec degree that is equal to 1
  4. 9. Cos __ degrees to radians is 1/2
  5. 12. it is a kind of theorem that has a formula of a2 + b2= c2
  6. 15. cot (-x) is equal to _
  7. 16. 4π/3 to degrees is equivalent to ______
  8. 17. The length of the adjacent side divided by the length of the hypotenuse.
  9. 18. base/hypotenuse
  10. 20. −cotθ
  11. 21. 11π/6 to degrees is ______
  12. 23. A measure of a central angle that intercepts an arc with a length equal to the radius of the circle.
  13. 25. Quadrant III
  14. 26. cos(−60°)
  15. 27. There are 360 of these in one revolution of the Unit Circle.
  16. 28. The ______ which says that an unknown side can be found from two known sides and the angle between them.
Down
  1. 1. 5 5tan^2θ−5sec^2θ is _
  2. 3. It is 4π/9
  3. 4. It is a square root of 3/3
  4. 6. It is the side of a right-angled triangle that is opposite the right angle.
  5. 7. The length of the opposite side divided by the length of the hypotenuse.
  6. 10. Has a radius of 1 unit and its center at the origin of the coordinate plane.
  7. 11. secx tanx
  8. 13. The length of the opposite side divided by the length of the adjacent side.
  9. 14. _ degrees to radians= 3π/2
  10. 19. A branch of mathematics that studies relationships between the sides and angles of triangles.
  11. 22. Reference angle for 180 degrees
  12. 24. Sin^2A+Cos^__= 1
  13. 26. cos20°+2sin^2 55°− √2sin 65° is _