math exponents and radicals unit exam

Index

a number that indicates the type of root. Ex. 3 represents cubed root.

Radical sign

The root symbol that surrounds the number.

Radicand

the number or variable inside the radical sign

Entire radical

\sqrt8

Mixed radical

2\sqrt2

Natural numbers

Positive integers that you can naturally count

Zero is NOT a natural number

Whole numbers

Non negative positive integers, terminating, includes 0

Integers

Positive or negative whole number

Rational numbers Q

Numbers that can be written in the form: \frac{a}{b} , or integers, or fractions, terminating

Irrational numbers \overline{Q}

À number that Cannot be written in the form \frac{a}{b}

Non repeating and non terminating Ex. \pi

Réal Numbers R

Number that can be used to represent a continuous quantity ex. Length. Includes both rational and irrational #’s.

Not real numbers

Negative exponents