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