# Math C30 Terminology

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## Across

2. a set of points equidistant from a fixed point and a fixed straight line

4. reciprocal of sin

8. angles resulting from a clockwise rotation

12. a line parallel to the directrix passing through the focal point

13. a statement of equality that may be satisfied by none, one , or more values of the variable

15. 60 parts of a minute

16. the axis of a hyperbola similar to the major axis in an ellipse

17. reciprocal of cos

20. the curve that results when a cone intersects a plane

23. cos(-x) = cosx is referred to as a _______ identity

25. the distance from a fixed point in an ellipse to the curve

28. another name for stationary ray

29. tanx = sinx/cosx is referred to as a _______ identity

30. the distance from the fixed point of a circle to its circumference

34. another name for revolving ray

35. (side adjacent)/(hypotenuse)

36. the set of points such that the absolute value of the difference of their distance from two fixed points is a constant

37. the fixed line of a parabola that never touches or crosses the curve

41. fixed point of a circle

43. longer axis in an ellipse

44. reciprocal of tan

45. an equation in the form (x - h)^2 + (y - k)^2 = r^2

46. the graph of a function repeats itself

48. a circle of radius 1 and centre at the origin

49. a line perpendicular to the directrix in a parabola

50. the hyperbola of the form xy = k

## Down

1. an equation that is satisfied by all values of the variable that are in the domain of each side of the equation

2. sin^2x + cos^2x = 1 is referred to as a ________ identity

3. 1/360 th of a revolution

5. maximum or minimum value of a circular function

6. where is the sine of any angle is equal to the cosine of its complement

7. angles resulting from a counter clockwise rotation

9. an equation in the form Ax^2 + By^2 + Cx + Dy + E = 0

10. reciprocal of csc

11. point of intersection of the axis of symmetry and the curve of a quadratic function

14. (r)/(y-coordinate)

15. an angle with its vertex at the origin and the initial side coincides with x-axis

16. reciprocal of cot

18. 60 parts of a degree

19. formed by revolving a ray about a stationary ray

21. reciprocal of sec

22. a straight line that approaches a curve but never touches it

24. the axis of a hyperbola similar to the minor axis in an ellipse

25. the fixed point of a parabola

26. a set of points a given distancet from a fixedl point

27. shorter axis in an ellipse

31. (side opposite)/(hypotenuse)

32. (side opposite)/(hside adjacent)

33. a set of points the sum of whose distances from two fixed points is a constant

38. (x-coordinate)/(y-coordinate)

39. portion of a circle bounded by two radii and the arc of the circle

40. four regions of a coordinate plane

42. cscx = 1/sinx is referred as a ______ idenitty

45. (r)/(x-coordinate)

47. arc of a circle equal in length ot the radius

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