7.1-7.2

Question 1

index

Answer 1

says how many times to use the number in a multiplication. It is written as a small number to the right and above the base number.

Question 2

nth root

Answer 2

where n is a positive integer, is any of the n real or complex numbers r whose nth power is x:

Question 3

principal root

Answer 3

The concept of principal square root cannot be extended to real negative numbers since the two square roots of a negative number cannot be distinguished until one of the two is defined as the imaginary unit, at which point and can then be distinguished.

Question 4

Radicand

Answer 4

is the number under a radical symbol

Question 5

Rationalize the Denominator

Answer 5

is when we move a root (like a square root or cube root) from the bottom of a fraction to the top.