Radical Crossword Puzzle

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Across
  1. 4. "real numbers are the numbers which include both rational and irrational numbers"
  2. 6. "written as n√a , where n is a positive integer greater than or equal to 2"
  3. 7. what we refer to the radicand and radical sign together
  4. 8. the opposite pair of either a+bi or a-bi
  5. 9. tells us how many times to use the number in multiplication
  6. 10. what the real number b is called
  7. 14. "a function that maps the set of nonnegative real numbers onto itself"
  8. 17. expressions with exponents that are rational numbers
  9. 19. the symbol that we use to denote the principal square root
Down
  1. 1. of i to real numbers
  2. 2. if "a" is a nonnegative real number, the nonnegative number "b" such that b^2=a, denoted by b=√a
  3. 3. the product of two nth roots is the nth root of the product of the radicands
  4. 5. the number under the radical sign
  5. 9. "when squared, gives a negative result"
  6. 11. a real number that cannot be written as a simple fraction
  7. 12. "The FOIL method is a technique used to help remember the steps required to multiply two binomials."
  8. 13. defined as i=√-1, where i^2= -1
  9. 15. the form that contains sets of real and imaginary numbers
  10. 16. system of numbers based on adding
  11. 17. what the real number a is called
  12. 18. the number that the index is above