### Nth Root

For any real numbers A and B, and any positive integer N, if A'N = B, then A is an Nth root of B.

### Rationalize the denominator

Rewrite an expression so there are no radicals in any denominator and no denominators in any radical.

### Radical Equation

An equation that has a variable on a radicand or has a variable with a rational exponent.

### Composite Function

The output for the second function becomes the input for the second function. When you combine two functions, you form a _______.

### Inverse Relation

If a relation maps element A of it's domain to element B of its range, the ______ "undoes" the relation and maps B back to A. If (a,b) is an ordered pair of a relation, then (b,a) is an ordered pair of it's inverse.

### Inverse Functions

If F'1 and F'-1 are functions, they are called ______. For inverse functions, F'-1(F(x)) = x and F(F'-1(x)) = x.