7.1: Roots and Radical Expressions

Question 1

nth root

Answer 1

For any real numbers a and b, and positive integer n, if a^n = b, then a is an nth root of b

Question 2

Radicand

Answer 2

The numbers under the radical sign

Question 3

Index

Answer 3

Gives the degree of the root

Question 4

Principal Root

Answer 4

The positive root, when a number has two real roots