Terminology

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Across
  1. 2. Result of addition
  2. 5. Trigonometric function sine divided by cosine
  3. 6. Mathematical statement to be proved
  4. 9. Study of angles and triangles
  5. 10. Line dividing an angle into two equal parts
  6. 12. Result following from a theorem
  7. 14. Visual representation of a function
  8. 15. Set of points equidistant from a center
  9. 17. Expression with two terms
Down
  1. 1. Rule assigning at most one output to inputs
  2. 3. Statement explaining a concept
  3. 4. Trigonometric function of an angle
  4. 7. Helper result used in a proof
  5. 8. Result of multiplication
  6. 9. Proven mathematical result
  7. 11. Additional mathematical observation
  8. 13. Statement accepted without proof
  9. 16. Trigonometric function opposite over hypotenuse