Mathematics IV

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Across
  1. 3. indicate by the sign =
  2. 7. given condition to investigate or demonstrate.
  3. 8. x-axis measured parallel to the vertical or y-axis.
  4. 10. addition of two or more numbers.
  5. 11. small angle that measures less than 90 degrees.
  6. 14. tan
  7. 15. series of system of written symbols used to represent a number.
  8. 18. usually measured in degree.
  9. 19. a flat surface which a straight line joining any two points.
Down
  1. 1. set of values thst given function can take its arguement varies.
  2. 2. action of mathematical calculation.
  3. 4. least common denominator
  4. 5. coaine
  5. 6. the set of possible values of the independent variable.
  6. 9. same value of express the same mathematical object.
  7. 12. a meeting of two lines that form an angle.
  8. 13. able to assume different numerical value.
  9. 16. process of inversion.
  10. 17. used in counting.