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