7.1: Roots and Radical Expressions

Question 1

for any real numbers a and b, and any positive integer n, if an = b, then a is a what of b

Answer 1

nth root

Question 2

the number under the radical sign

Answer 2

radicand

Question 3

gives the degree of the root

Answer 3

index

Question 4

when a number has two real roots the positive root is called

Answer 4

principal root