Trigonometry

2. A line which passes through at least two points of a curve
6. figure formed by two rays
7. trig function of 1/tanθ
9. An equation which is true regardless of what values are substituted for any variables
10. the distance between successive crests of a wave
12. A unit of angle measure equal to 1/60 of a degree
13. horizontal shift for a periodic function
15. a straight line or plane that touches a curve or curved surface at a point, but if extended does not cross it at that point.
16. study of triangles
18. A way of remembering how to compute the sine, cosine, and tangent of an angle
19. A unit of angle measure equal to 1/360 of a complete revolution
20. adjacent over hypotenuse

1. letters of ancient Greece, frequently used in math and science
3. Trig identities showing the relationship between sine and cosine, tangent and cotangent, and secant and cosecant
4. A line or curve that the graph of a relation approaches more and more closely the further the graph is followed.
5. two similar ways of indicating direction
8. The inverse function of cosecant
11. 3.14159265358979
14. Half the difference between the minimum and maximum values of the range.
17. a unit of angle equal to an angle at the center of a circle whose arc is equal in length to the radius.